Solve the system of equations. (If there is no solution, enter NO SOLUTION.) { {y=3x²−5x−4
{y=x−5
(x,y) =

Answers

Answer 1

The solution are as follows:

(x₁, y₁) = ((3 + √6) / 3, (-12 + √6) / 3)
(x₂, y₂) = ((3 - √6) / 3, (-12 - √6) / 3)

To solve the given system of equations, we'll use the method of substitution. Let's start by substituting the value of y from the second equation into the first equation:

Substituting y = x - 5 into the equation y = 3x² - 5x - 4, we get:
x - 5 = 3x² - 5x - 4

Now, let's rearrange the equation to bring all terms to one side:
3x² - 5x - x + 5 - 4 = 0
3x² - 6x + 1 = 0

Next, we'll solve this quadratic equation. We can either factor it or use the quadratic formula. In this case, the equation doesn't factor nicely, so we'll use the quadratic formula:

x = (-b ± √(b² - 4ac)) / (2a)

For the equation 3x² - 6x + 1 = 0, the values of a, b, and c are:
a = 3, b = -6, c = 1

Substituting these values into the quadratic formula, we get:
x = (-(-6) ± √((-6)² - 4(3)(1))) / (2(3))
x = (6 ± √(36 - 12)) / 6
x = (6 ± √24) / 6
x = (6 ± 2√6) / 6
x = (3 ± √6) / 3

Therefore, we have two possible solutions for x:
x₁ = (3 + √6) / 3
x₂ = (3 - √6) / 3

To find the corresponding y-values, we can substitute these x-values into either of the original equations. Let's use the second equation y = x - 5:

For x₁ = (3 + √6) / 3:
y₁ = (3 + √6) / 3 - 5
y₁ = (3 + √6 - 15) / 3
y₁ = (-12 + √6) / 3

For x₂ = (3 - √6) / 3:
y₂ = (3 - √6) / 3 - 5
y₂ = (3 - √6 - 15) / 3
y₂ = (-12 - √6) / 3

Hence, the solutions to the system of equations are:

(x₁, y₁) = ((3 + √6) / 3, (-12 + √6) / 3)
(x₂, y₂) = ((3 - √6) / 3, (-12 - √6) / 3)

To know more about system of equations, refer here:

https://brainly.com/question/21620502#

#SPJ11


Related Questions

the grade and W is the weight of the automobile. F=Wsin\theta What is the grade resistance of a 2900-pound car traveling on a 1.8\deg uphill grade?

Answers

The grade resistance of the 2900-pound car traveling on a 1.8° uphill grade is approximately 90.446 pounds.

To calculate the grade resistance of a car, we can use the equation:

Grade Resistance (F) = Weight of the car (W) * sin(θ)

Given that the weight of the car is 2900 pounds and the uphill grade is 1.8 degrees, we can calculate the grade resistance:

F = 2900 * sin(1.8°)

Using a calculator, the value of sin(1.8°) is approximately 0.031246.

F ≈ 2900 * 0.031246

F ≈ 90.446 pounds

Therefore, the grade resistance of the 2900-pound car traveling on a 1.8° uphill grade is approximately 90.446 pounds.

To learn more about grade resistance

https://brainly.com/question/9052532

#SPJ11

Find sin2θ and cos2θ if tanθ= 7/24 and 0≤θ≤π/2. (Use Symbolic notation and fractions where needed.)

Answers

By using the double-angle identities and the given value of tanθ, we determined the values of sin2θ and cos2θ to be 336/625 and 527/625, respectively.

To find the values of sin2θ and cos2θ, we can use the double-angle identities for sine and cosine.Given that tanθ = 7/24, we can determine the values of sinθ and cosθ. Since 0≤θ≤π/2 and tanθ is positive, we can conclude that θ is in the first quadrant.

To find sinθ, we can use the fact that sinθ = tanθ / sqrt(1 + tan²θ). Substituting the given value of tanθ, we have: sinθ = (7/24) / sqrt(1 + (7/24)²) = 7/25.

Similarly, to find cosθ, we can use the fact that cosθ = 1 / sqrt(1 + tan²θ). Substituting the given value of tanθ, we have: cosθ = 1 / sqrt(1 + (7/24)²) = 24/25.

Now, we can use the double-angle identities: sin2θ = 2sinθcosθ and cos2θ = cos²θ - sin²θ. Substituting the values of sinθ and cosθ we obtained earlier, we have: sin2θ = 2(7/25)(24/25) = 336/625. cos2θ = (24/25)² - (7/25)² = 576/625 - 49/625 = 527/625.

Therefore, sin2θ = 336/625 and cos2θ = 527/625.

To know more about double-angle identities refer:

https://brainly.com/question/30402758

#SPJ11

how much 3458 is less than a million​

Answers

Using the subtraction operation, 3458 is 996542 less than a million .

Subtracting numbers

The subtraction operation gives how much a value or number is greater than the other.

Given the values :

3458 and 1,000,000

The subtraction operation would give us how much 1000000 is greater than 3458

1000000 - 3458 = 996542

Therefore, the required value is 996542.

Learn more on subtraction: https://brainly.com/question/25693822

#SPJ1

(f⋅g)(−3) given f(x) = x − 2 and g(x) = 4x² + 10x −2 A) −20 B) 115

Answers

The value of `(f⋅g)(-3)` is `-20`.

The functions `f(x) = x - 2` and `g(x) = 4x² + 10x - 2`, we are tasked with finding `(f⋅g)(-3)`. This expression represents the product of the two functions evaluated at `x = -3`.

To calculate `(f⋅g)(-3)`, we substitute `-3` into both `f(x)` and `g(x)`. The product of the two functions is obtained by multiplying `f(x)` and `g(x)`, as expressed by `(f⋅g)(x) = f(x)⋅g(x)`. By plugging in the given functions, we get:

`(f⋅g)(x) = (x - 2)(4x² + 10x - 2)`

Next, we substitute `x = -3` into the equation:

`(f⋅g)(-3) = (-3 - 2)(4(-3)² + 10(-3) - 2)`

Simplifying the expression further, we have:

`(f⋅g)(-3) = (-5)(36 - 30 - 2) = (-5)(4) = -20`

Thus, the value of `(f⋅g)(-3)` is `-20`. Option A is the correct answer.

Learn more about function composition:

https://brainly.com/question/30660139

#SPJ11

Drag each length to the correct location on the image. Each length can be used more than once, but not all lengths will be used.
What are the missing segment lengths shown in the image?
20
10/2 10√3 10
B
20√3 20√2
45° 45°
45°
20
0
45

Answers

By applying Pythagoras theorem, the missing segment lengths of this triangles include:

CD = 10√2

AC = 10√2

BC =  10

AB = 10

Since triangle ACD is a right-angle triangle, we would use Pythagoras theorem to find the missing segment lengths of this triangles as follows:

c² = a² + b² ≡ AD² = CD² + AC²

Next, we would use cos trigonometric ratio to find side CD,

cos45 = adjacent/hypotenuse

cos 45 = CD/20

1/√2 = CD/20

CD = 1/√2 × 20

CD = (20√2)/2

CD = 10√2

For side AC, we have:

AD² = CD² + AC²

AC² = AD² - CD²

AC² = 20² - (10√2)²

AC² = 400 - 100(2)

AC = √200

AC = 10√2

From triangle ABC, we have:

cos45 = BC/10√2

BC = 10√2 × cos45

BC = 10√2 × 1/√2

BC = (10√2)/√2

BC = 10

For side AB, we have:

AB² = (10√2)² - 10²

AB² = 200 - 100

AB² = 100

AB = 10.

​for such more question on missing segment lengths

https://brainly.com/question/29321994

#SPJ8

(2.50×10
6
)(1.56×10
5
)=
5.69×10
6
−1.00×10
−8

9.62×10
4


=
9.62×10
4

(9.30×10
−5
)(8.42×10
−4
)

=

Answers

The product of[tex](2.50×10^6)(1.56×10^5)[/tex] is calculated by multiplying the coefficients (2.50 and 1.56) to get 3.9 and adding the exponents (6 and 5) to get 11. The final answer is expressed in scientific notation as [tex]3.9×10^11[/tex].

What is the result of [tex](2.50×10^6)(1.56×10^5)[/tex]?

To calculate the product of two numbers written in scientific notation, we multiply their coefficients and add their exponents. In this case, we have [tex](2.50×10^6)(1.56×10^5).[/tex]

First, let's multiply the coefficients: 2.50 × 1.56 = 3.9.

Next, we add the exponents: 6 + 5 = 11.

Combining the result of the coefficient multiplication (3.9) with the sum of the exponents (11), we express the final answer in scientific notation as 3.9×10^11.

Learn more about scientific notation

brainly.com/question/19625319

#SPJ11

In a coordinate system, when looking from the positive end of an axis of rotation, the positive rotation is counterclockwise (CCW). Is this a left-handed or right-handed? (see question 6) Left-handed Right-handed It could be both Such a coordinate system is impossible

Answers

When looking from the positive end of an axis of rotation, if the positive rotation is counterclockwise (CCW), the coordinate system is right-handed.

In a coordinate system, the direction of positive rotation can be either clockwise (CW) or counterclockwise (CCW). When looking from the positive end of an axis of rotation, if the positive rotation is counterclockwise (CCW), the coordinate system is right-handed.

A right-handed coordinate system follows the right-hand rule, which states that when you align your right hand's fingers with the axis of rotation, your thumb points in the direction of positive rotation. This convention is widely used in mathematics, physics, and engineering.

In contrast, a left-handed coordinate system would have the opposite convention, where positive rotation would be clockwise (CW) when looking from the positive end of the axis.

The distinction between left-handed and right-handed coordinate systems is important when dealing with various applications such as 3D modeling, robotics, or fluid dynamics, where consistent and standardized conventions are necessary for accurate calculations and representations.

To know more about the right-hand rule and coordinate systems, refer here:

https://brainly.com/question/4726772#

#SPJ11

Find the arc length s, of an arc with central angle θ=3π/2 and radius r=13 inches. a) 7020π inches b) 39π inches c) 39π/2  inches d) 39π/8 inches e) 39π/4
 inches f) None of the above

Answers

The correct answer is c) 39π/2 inches.

To find the arc length, we can use the formula:

s = θ * r

where s is the arc length, θ is the central angle, and r is the radius.

In this case, the central angle θ is given as 3π/2 and the radius r is given as 13 inches.

Plugging these values into the formula, we have:

s = (3π/2) * 13

To simplify, we can multiply the numbers and simplify the π terms:

s = (3/2) * 13π

Now we can calculate the value:

s = 39π/2 inches

Therefore, the correct answer is c) 39π/2 inches.

Know more about arc length here:

https://brainly.com/question/31762064

#SPJ11

If a researcher wants to demonstrate that their findings depict a significant difference between participant groups, Which of the following statistical statements would need to be made?
a. p ≤ 0.05
b. r = ±1.00
c. t ≥ 2.50
d. z ≤ 100

Answers

The statistical statement that would need to be made if a researcher wants to demonstrate that their findings depict a significant difference between participant groups is option "a. p ≤ 0.05".

P value (probability value) is the most common index of statistical significance, which determines whether or not a study's findings are statistically significant. The p value denotes the likelihood of obtaining the study's findings due to chance, and is often contrasted to the alpha level to establish whether or not the outcomes are statistically significant.

An alpha level of 0.05 is commonly used in research, indicating that there is a 5% likelihood of obtaining the study's findings purely by chance. This alpha level is often denoted by p ≤ 0.05. When the p value is less than or equal to 0.05, it indicates that the findings are statistically significant.

Therefore, if a researcher wants to demonstrate that their findings depict a significant difference between participant groups, the appropriate statistical statement to make is "p ≤ 0.05."

To know more about researcher refer here:

https://brainly.com/question/24174276#

#SPJ11

We generally prefer standard deviation to variance when we describe the variability of a data set, becuase

A) standard deviation is larger than the variance

B) the interpretation of standard deviation is more intuitive

C) Standard deviation can better estimate the population parameters

D) all of the above

Answers

B) the interpretation of standard deviation is more intuitive

The standard deviation is preferred over variance because it is in the same units as the data, making it more intuitive and easier to interpret. Variance is the square of standard deviation, so its units are squared, making it less straightforward to understand in terms of the original data.

Mass of dry crucible and cover (This would be measured ofter heating the washed crucible to dryness in step 2.) 2. Mass of crucible, cover and hydrated salt 45.891 g40.142 g 4. Mass of crucible, cover and anhydrous salt 45,6490 39.889g (2
ns
heating) 5. Mass of crucible, cover and anhydrous salt ( 3
rd
heating, if necessary) Calculations Show your work for all calculations in Trial 1 in the spaces provided. Calcium Chloride Dihydrate, CaCl
2

∙2H
2

O Magnesium Sulfate Heptahydrate, MgSO
4

∙7H
2

O

Answers

The mass of anhydrous salt of magnesium sulfate heptahydrate is 0.254g.

The calculations for the mass of anhydrous salt of calcium chloride dihydrate and magnesium sulfate heptahydrate are as follows;

Calculation of mass of calcium chloride dihydrate Mass of dry crucible and cover (This would be measured after heating the washed crucible to dryness in step 2.) = 40.142g Mass of the crucible, cover and hydrated salt = 45.891gMass of the crucible, cover and anhydrous salt (2nd heating) = 45.490gMass of hydrated salt (45.891g - 40.142g) = 5.749g Mass of anhydrous salt (45.490g - 40.142g) = 5.348g

Therefore, the mass of the anhydrous salt of calcium chloride dihydrate is 5.348g. Calculation of mass of magnesium sulfate heptahydrate Mass of dry crucible and cover (This would be measured after heating the washed crucible to dryness in step 2.) = 40.142gMass of crucible, cover and hydrated salt = 45.891g

Mass of crucible, cover and anhydrous salt (2nd heating) = 39.889gMass of the crucible, cover and anhydrous salt (3rd heating) = 39.889g Mass of hydrated salt (45.891g - 40.142g) = 5.749g Mass of anhydrous salt (39.889g - 40.142g) = 0.254g

You can read more about anhydrous salt at https://brainly.in/question/33279790

#SPJ11

Michael spends all of his money on yams and pudding. His utility function is U=p
.5
y
.5
(MU
p

=
2p
5

y
.5


,MU
y

=
2y
.5

p
.5


) Using the typical budget constraint (I=P
y

y+P
p

p) which of the following is his demand function for pudding? Reminder: x
5
=
x


p


p


p




=
2P
p


I


=
P
p


2I


=
P
p


I



None

Answers

Michael's demand function for pudding, we need to maximize his utility function subject to the budget constraint.

Given the utility function U = [tex]P^{0.5}[/tex] * [tex]Y^{0.5}[/tex] and the budget constraint I = P_y * y + P_p * p, where I represents income, P_y is the price of yams, P_p is the price of pudding, y represents the quantity of yams, and p represents the quantity of pudding.

To solve this problem, we need to use the Lagrange multiplier method. The Lagrangian function is:

L = [tex]P^{0.5\\}[/tex]* [tex]Y^{0.5}[/tex] + λ(I - P_y * y - P_p * p)

We differentiate the Lagrangian function with respect to p, y, and λ and set the derivatives equal to zero to find the critical points.

∂L/∂p = 0.5 * [tex]P^{-0.5}[/tex] * [tex]Y^{0.5}[/tex]- λ * P_p = 0          (1)

∂L/∂y = 0.5 *[tex]P^{0.5}[/tex] * [tex]Y^{-0.5}[/tex] - λ * P_y = 0          (2)

∂L/∂λ = I - P_y * y - P_p * p = 0                 (3)

From equation (1), we have:

0.5 * [tex]p^{-0.5}[/tex] * [tex]y^{0.5[/tex] = λ * P_p

From equation (2), we have:

0.5 *[tex]p^{0.5}[/tex] * [tex]y^{-0.5[/tex] = λ * P_y

Dividing these two equations, we get:

([tex]p^{0.5}[/tex] * [tex]y^{-0.5}[/tex]) / )[tex]p^{-0.5}[/tex] * [tex]y^{0.5}[/tex]) = P_y / P_p

y / p = P_y / P_p                                 (4)

Substituting equation (4) into equation (3), we have:

I = P_y * y + P_p * p

I = P_y * (P_p / P_y) * p + P_p * p

I = (P_p * P_y + P_p * P_y) * p

I = 2 * P_p * P_y * p

Rearranging the equation, we find the demand function for pudding:

p = I / (2 * P_p * P_y)

Therefore, the demand function for Pudding is:

p = I / (2 * P_p * P_y)

Learn more about constraint here:

https://brainly.com/question/32017487

#SPJ11

Indicate if the following propositions are true (T) or false (F)
1) The normal vector of the plane P : 4x – 5y + 10z – 12 = 0 is (4, –5,10).
2) Two planes are perpendicular when the product of their normal vectors is 1.
3) The normal vector of the plane P : 4x – 5y + 10z – 12 = 0 is (4, –5,12).
4) Two planes are perpendicular when the product of their normal vectors is 0.
CHOOSE THE CORRECT ANSWER:
A. FFVV
B. VVFF
C. FVFV
D. VFFV

Answers

1) False. The normal vector is (4, -5, 10).
2) False. Two planes are perpendicular when the dot product of their normal vectors is 0.
3) False. The normal vector is (4, -5, 10), not (4, -5, 12).
4) True. Two planes are perpendicular when the dot product of their normal vectors is 0.


The normal vector of a plane is obtained by taking the coefficients of x, y, and z in the equation of the plane. In the first statement, the given normal vector (4, -5, 10) is incorrect, so the statement is false. The dot product of two normal vectors of planes determines if the planes are perpendicular or not.

In the second statement, the product of normal vectors should be 0 for perpendicular planes, not 1, so the statement is false. The third statement also provides an incorrect normal vector (4, -5, 12), making it false. The fourth statement is true since the dot product of perpendicular planes' normal vectors is always 0.

To know more about Perpendicular visit.

https://brainly.com/question/12746252

#SPJ11

Find the slope m and y-intercept b. (Give exact answers. Do not round. If an answer is undefined, enter UNDEFINED. If an answer does not exist, enter DNE.) y= 7/3 x - 1/2
m= b=

Answers

The slope (m) is 7/3 and the y-intercept (b) is -1/2.

In the equation y = (7/3)x - 1/2, the coefficient of x represents the slope (m) of the line, and the constant term represents the y-intercept (b).

Therefore, in this case:

m = 7/3

b = -1/2

Hence, the slope (m) is 7/3 and the y-intercept (b) is -1/2.

The slope of a line represents the rate at which the line is ascending or descending. In the equation y = (7/3)x - 1/2, the coefficient of x is 7/3. This means that for every unit increase in x, the corresponding y-value increases by 7/3. The slope, therefore, is positive 7/3, indicating that the line is ascending as x increases.

To learn more about slope

https://brainly.com/question/29044610

#SPJ11

Choose the system of equations which matches the following graph.
A. 3x-6y=12
9x-18y=36
B. 3x+6y=12
9x+18y=36

Answers

The system of equations that matches the given graph is:

A. 3x - 6y = 12

9x - 18y = 36

To determine which system of equations matches a given graph, we need to analyze the slope and intercepts of the lines in the graph.

Looking at the options provided:

A. 3x - 6y = 12

9x - 18y = 36

B. 3x + 6y = 12

9x + 18y = 36

Let's analyze the equations in each option:

For option A:

The first equation, 3x - 6y = 12, can be rearranged to slope-intercept form: y = (1/2)x - 2.

The second equation, 9x - 18y = 36, can be simplified to 3x - 6y = 12, which is the same as the first equation.

In option A, both equations represent the same line, as they are equivalent. Therefore, option A does not match the given graph.

For option B:

The first equation, 3x + 6y = 12, can be rearranged to slope-intercept form: y = (-1/2)x + 2.

The second equation, 9x + 18y = 36, can be simplified to 3x + 6y = 12, which is the same as the first equation.

In option B, both equations also represent the same line, as they are equivalent. Therefore, option B does not match the given graph.

for such more question on system of equations

https://brainly.com/question/4262258

#SPJ8

8. Write the equation of the circle centered at (-7,6) with
radius 12.
10. In a circle of radius 5 miles, the length of the arc that
subtends a central angle of 6 radians is

Answers

The length of the arc that subtends a central angle of 6 radians in a circle of radius 5 miles is approximately 9.5493 miles

8. The equation of the circle centered at (-7,6) with a radius of 12 is (x + 7)² + (y - 6)² = 144.The equation of the circle can be expressed in terms of the center and radius, that is: (x - h)² + (y - k)² = r²where (h, k) is the center of the circle and r is its radius. Substituting h = -7, k = 6, and r = 12, we get: (x + 7)² + (y - 6)² = 14410. In a circle of radius 5 miles, the length of the arc that subtends a central angle of 6 radians is 30 miles.The formula for calculating the length of an arc in a circle is given as: Arc Length = (θ/360) × 2πrwhere θ is the central angle, r is the radius of the circle and π is the value of pi. Substituting θ = 6 radians and r = 5 miles, we get: Arc Length = (6/360) × 2π(5) = 5/6 × π = 30/π ≈ 9.5493 miles (rounded to four decimal places).Therefore, the length of the arc that subtends a central angle of 6 radians in a circle of radius 5 miles is approximately 9.5493 miles (rounded to four decimal places).

Learn more about length :

https://brainly.com/question/13194650

#SPJ11

You run single index regression model on the monthly returns collected for company ABC. The regression model is specified as:

R subscript A B C comma t end subscript superscript asterisk times space equals alpha subscript A B C end subscript plus beta subscript A B C end subscript space R subscript M comma t end subscript superscript asterisk times space plus e subscript A B C comma space t end subscript


Where
R subscript A B C comma t end subscript superscript asterisk times is the excess return of company ABC in month t
R subscript M comma space t end subscript superscript asterisk times is the market excess return in month t

Regression output is presented below:
REGRESSION SUMMARY OUTPUT

Regression Statistics

Multiple R

0.2557

R Square

0.0654

Adjusted R Square

0.0510

Standard Error

11.1693

Observations

67




Coefficients

Standard Error

t Stat

P-value

Lower 95%

Upper 95%

Intercept

-0.6700

1.4098

-0.4753

0.6362

-3.4856

2.1455

Market

0.8700

0.4074

2.1323

0.0368

0.0551

1.6825


What is the adjusted beta of company ABC’s stock?
Select one:

a.
0.9133


b.
0.3769


c.
0.3673


d.
0.6049


e.
-0.1133

Answers

The adjusted beta of company ABC's stock is approximately 0.2229.

The adjusted beta of company ABC's stock can be found by looking at the coefficient of the Market variable in the regression output. In this case, the coefficient of the Market variable is 0.8700.

The adjusted beta is calculated by multiplying the beta coefficient by the square root of the R-squared value. The R-squared value in this case is 0.0654.

Adjusted Beta = Beta * sqrt(R-squared)

Adjusted Beta = 0.8700 * sqrt(0.0654)

Calculating this, we find:

Adjusted Beta = 0.8700 * 0.2555

Adjusted Beta ≈ 0.2229

Therefore, The stock of firm ABC has an adjusted beta of about 0.229.

Since none of the provided options match this result, it seems there might be an error in the given regression output or calculations.

learn more about stock from given link

https://brainly.com/question/14986133

#SPJ11

A manufacturer's sales price per part (P) can be calculated by: P= 250+16.25N/n
Where P= minimum sales price per part, $250 is the overhead costs, $16.25 is the cost of producing the part, and N= number of parts produced. Find the number of parts that must be produced to make the sales price $30, rounded to the nearest part.

Answers

The number of parts that must be produced to make the sales price $30 is 55 parts

Given, the manufacturer's sales price per part (P) can be calculated by:P= 250+16.25N/nWhere P= minimum sales price per part, $250 is the overhead costs, $16.25 is the cost of producing the part, and N= number of parts produced. We have to find the number of parts that must be produced to make the sales price $30, rounded to the nearest part.To find the number of parts (N) that must be produced to make the sales price $30:Put the given values in the given equation:P = 250 + 16.25N/NSubstitute P = 30 in the above equation.30 = 250 + 16.25N/NSimplify and rearrange the above equation to find N.16.25N = 30N - 750-13.75N = -750N = -750/-13.75N = 54.545Then, rounding to the nearest whole number, the number of parts that must be produced to make the sales price $30 is 55 parts (nearest whole number).Therefore, 55 parts must be produced to make the sales price $30 (rounded to the nearest part).

Learn more about number :

https://brainly.com/question/10547079

#SPJ11

a goniometer may be used to measure the range of motion of a joint

Answers

A goniometer is a tool used to measure the range of motion of a joint. It helps determine the degrees of flexion and extension of the joint. By using this device, healthcare professionals can assess the mobility and flexibility of a joint.


A goniometer is a simple tool that consists of two arms and a protractor. It is used to measure the range of motion of a joint, such as the shoulder or knee. The arms of the goniometer are aligned with the bones on either side of the joint, and the protractor is used to measure the angle between the arms. This angle indicates the degrees of flexion and extension of the joint.

For example, if a physical therapist wants to assess a patient's knee mobility, they would place the goniometer on the patient's knee joint and measure the angle as the patient moves their leg. This measurement helps determine the extent of movement and any limitations or abnormalities in the joint.

To know more about Protector visit.

https://brainly.com/question/22955092

#SPJ11

Find the square root. If the square roo \sqrt(84)

Answers

The square root of the number 84 is 2√21.

To find the square root of 84, follow these steps:

We can use the prime factorization method. 84 can be factorized as;84 = 2 * 2 * 3 * 7 Now, group the factors into pairs, starting with the smallest: 84 = (2 * 2) * (3 * 7)Next, we will take one factor from each pair to find the square root of 84:√84 = √(2 * 2 * 3 * 7)So, √84= 2√3√7= 2√21.

Thus, the square root of 84 is equal to 2√21, which is in simplest radical form.

Learn more about square root:

brainly.com/question/3617398

#SPJ11

The function y=Asin(\omega x),A>0, has amplitude 3 and period 2 ; then A= and \omega

Answers

The function given is:y = Asin(ωx)Here,A > 0Amplitude = 3Period = 2The general equation of sine function is given by:y = Asin(Bx + C) + DHere,A = Amplitude = 3D = 0 (sine function passes through origin)We can calculate the value of B, which is related to period as follows:B = 2π/PeriodSubstitute the given values in the above expression to get:B = 2π/2 = πTherefore, the function can be written as:y = 3sin(πx)The value of A = Amplitude = 3Therefore, A = 3ω = B = πTherefore, ω = πHence, A = 3 and ω = π.

#SPJ11

Learn more about period of function https://brainly.in/question/40853960

The plan and the front elevation of a cylinder are shown on a centimetre grid. Work out the volume of the cylinder. Give your answer in terms of π Optional working cm³ Total marks: 3​

Answers

The volume of the cylinder is 25πh cm³, where h is the height of the cylinder (in an unknown unit).

To calculate the volume of a cylinder, we need to know the height (h) and the radius (r) of the cylinder. Since the front elevation is not provided, we cannot directly determine the radius. Therefore, we will make an assumption for the radius based on the given information.

From the plan, we can see that the diameter of the base is 10 centimeters. Assuming this is the diameter of the cylinder, the radius (r) would be half of the diameter, which is 5 centimeters.

Now that we have the radius, we can calculate the volume (V) using the formula for the volume of a cylinder:

V = π * r^2 * h

Substituting the values, we get:

V = π * (5 cm)^2 * h

Since the height (h) is not provided, we cannot determine the volume in terms of a specific unit. However, the volume can be represented as:

V = 25πh cm³

For more questions on cylinder

https://brainly.com/question/23935577

#SPJ8

Consider the piecewise function below. 

{ -5 x<0
f(x)={2x - 5 0≤x<3
{x - 6 x≥3
Evaluate f(3)

Answers

- For x less than 0, f(x) is -5.
- For x between 0 and 3, f(x) is 2x - 5.
- For x greater than or equal to 3, f(x) is x - 6.
- Evaluating f(3) results in -3.

The given function is a piecewise function, which means that its definition varies depending on the value of x. In this case, the function f(x) is defined as follows:

- For x less than 0, f(x) is equal to -5.
- For x between 0 (inclusive) and 3 (exclusive), f(x) is equal to 2x - 5.
- For x greater than or equal to 3, f(x) is equal to x - 6.

To evaluate f(3), we need to find the value of f(x) when x is equal to 3.

Since 3 is greater than or equal to 3, the third part of the piecewise function applies. Therefore, we substitute x = 3 into the expression x - 6.

f(3) = 3 - 6
    = -3

Therefore, f(3) is equal to -3.

In summary:
- For x less than 0, f(x) is -5.
- For x between 0 and 3, f(x) is 2x - 5.
- For x greater than or equal to 3, f(x) is x - 6.
- Evaluating f(3) results in -3.

Know more about piecewise function here:

https://brainly.com/question/28225662

#SPJ11

What happens if the p-value is less than the level of significance in a two tailed test?

Answers

If the p-value is less than the level of significance in a two-tailed test, it means that the observed data is statistically significant and we reject the null hypothesis.

The p-value represents the probability of obtaining the observed data or more extreme results, assuming the null hypothesis is true. The level of significance, also known as alpha (α), is the threshold we set to determine if the results are statistically significant. Common levels of significance include 0.05 or 0.01.

In a two-tailed test, we are testing for the possibility of the effect being either positive or negative. So if the p-value is less than the level of significance, it indicates that the observed data is unlikely to occur by chance if the null hypothesis is true. In other words, there is strong evidence to suggest that there is a real effect.

Here's an example to illustrate this:

Let's say we are investigating whether a new drug has an effect on reducing blood pressure. The null hypothesis (H0) would state that the drug has no effect, while the alternative hypothesis (Ha) would state that the drug does have an effect.

We conduct a statistical test and calculate the p-value. If the p-value is less than the level of significance (e.g., 0.05), we reject the null hypothesis and conclude that there is evidence to suggest that the drug does have an effect on reducing blood pressure.

It's important to note that the p-value does not tell us the magnitude or direction of the effect. It only tells us whether the effect is statistically significant or not. Additionally, a smaller p-value does not necessarily mean a larger or more important effect. It simply means that the observed data is unlikely to occur if the null hypothesis is true.

In summary, if the p-value is less than the level of significance in a two-tailed test, we reject the null hypothesis and conclude that there is evidence to suggest a statistically significant effect.

Know more about p-value here:

https://brainly.com/question/33325466

#SPJ11

The formula for the area of a triangle is A=(1)/(2)bh, where b represents the base length, and h represents the height. The perimeter of the triangle shown is 28 inches. Write an equation for the area A of this triangle in terms of its base length b.

Answers

The equation for the area of the triangle in terms of its base length b is [tex]A = (1/2)b(a^2 - (28 - b)^2)^{(1/2)}[/tex]

The equation for the area of a triangle is A = (1/2)bh, where b represents the base length and h represents the height. To write an equation for the area A of the given triangle in terms of its base length b, we need to first find the height of the triangle.

Since the perimeter of the triangle is given as 28 inches, we can write the equation:
a + b + c = 28, where a, b, and c represent the lengths of the three sides of the triangle.

Now, let's assume that b is the base length. This means that the other two sides, a and c, must add up to the remaining length of the perimeter, which is 28 - b.

Since a triangle can't have a side length greater than the sum of the other two sides, we can write the inequality:
|a - c| < b < a + c

Now, let's solve the inequality to find the possible values of a and c:
a - c < b and a + c > b

Substituting the value of b as the base length, we get:
a - c < b and a + c > b
a - c < b < a + c

Using these inequalities, we can express the height of the triangle h in terms of the base length b as follows:
[tex]h < (a^2 - (28 - b)^2)^{(1/2)}[/tex] and [tex]h < (a^2 - (28 - b)^2)^{(1/2)}[/tex]

Now, substituting the value of h in the area formula A = (1/2)bh, we get:
[tex]A < (1/2)b(a^2 - (28 - b)^2)^{(1/2)}[/tex]

So, the equation for the area A of the given triangle in terms of its base length b is:
[tex]A = (1/2)b(a^2 - (28 - b)^2)^{(1/2)}[/tex]

This equation provides the relationship between the area of the triangle and its base length, allowing us to calculate the area for different values of b.

To know more about triangle refer here:

https://brainly.com/question/32213220#

#SPJ11

Tyler cut a square cake vertically to make two rectangle slices. Each rectangle had a perimeter of 51 inches. How long is each side of the original square cake?
Solve on paper. Then check your work on Zearn. Each side of the original square cake is in. Excellent!
What is the area of the original square cake?

Answers

The area of the original square cake is 289 square inches.

Let's assume that the original square cake has a side length of "x" inches.

When the square cake is cut vertically into two rectangle slices, each slice will have a length equal to "x" and a width equal to half the side length of the square cake, which is "x/2".

The perimeter of a rectangle is given by the formula: 2(length + width).

For each rectangle slice, the perimeter is given as 51 inches.

So, for the first rectangle:

2(x + x/2) = 51

2(3x/2) = 51

3x = 51

x = 51/3

x = 17

Therefore, each side of the original square cake is 17 inches long.

The area of a square is given by the formula: side length * side length.

So, the area of the original square cake is:

17 * 17 = 289 square inches.

Therefore, the area of the original square cake is 289 square inches.

Learn more about  area  from

https://brainly.com/question/25292087

#SPJ11

Power sets A, B, C, D, and F have elements 64,256,512,32,16 and 1024 respectively. Find the number of elements in the sets A, B, C, D, E, and F.

Answers

The number of elements in sets A, B, C, D, E, and F are 5, 1, 0, 1, unknown, and 1 respectively.

To find the number of elements in each set A, B, C, D, E, and F, we can simply count the number of elements in each set individually.

Set A has the elements 64, 256, 512, 32, 16. Therefore, the number of elements in set A is 5.

Set B has the element 1024.

Therefore, the number of elements in set B is 1.

Set C does not have any elements listed.

Set D has the element 32.

Therefore, the number of elements in set D is 1.

Set E is not mentioned in the given information.

Set F has the element 1024.

Therefore, the number of elements in set F is 1.

In summary, the number of elements in each set is as follows:

Set A: 5 elements

Set B: 1 element

Set C: 0 elements

Set D: 1 element

Set E: Not mentioned

Set F: 1 element

Please note that the number of elements in set E cannot be determined based on the given information.

For similar question on elements.

https://brainly.com/question/6258301  

#SPJ8

determine if the given rational is a rational equation or not (1-x)/(x+7)=5

Answers

The given equation (1-x)/(x+7) = 5 is a rational equation since it involves the ratio of two polynomials and the solution to the rational equation (1-x)/(x+7) = 5 is x = -17/3.

A rational equation is an equation that involves ratios of polynomials. In this case, the equation (1-x)/(x+7) = 5 consists of two polynomials, (1-x) and (x+7), being divided. Hence, it meets the criteria of a rational equation.

To determine if the given expression (1-x)/(x+7) = 5 is a rational equation or not, we need to check if it can be reduced to the form of p(x)/q(x) = r, where p(x) and q(x) are polynomials and r is a rational number.

In this case, we have the equation (1-x)/(x+7) = 5. The numerator is the polynomial 1-x, and the denominator is the polynomial x+7. Since both the numerator and denominator are polynomials, we can say that the given expression is indeed a rational equation.

To solve the equation, we can start by cross-multiplying:

(1-x) = 5(x+7)

Expanding the equation gives us:

1 - x = 5x + 35

Next, we can simplify and rearrange the equation:

6x = -34

Dividing both sides by 6 yields:

x = -34/6

Simplifying the fraction gives us:

x = -17/3

Therefore, the solution to the rational equation (1-x)/(x+7) = 5 is x = -17/3.

To learn more about rational equations visit:

https://brainly.com/question/30284909

#SPJ11

onometric equation in the interval [0,2π). tan³x+tan²x−3tanx−3=0 g(x)=10x²+log(1−2x)

Answers

The solutions to trigonometric equation tan³x + tan²x - 3tanx - 3 = 0 in the interval [0, 2π) are x = 0, x = π, and x = π/4. The function g(x) = 10x² + log(1 - 2x) does not have any real roots in interval [0, 2π).The given equation is tan³x + tan²x - 3tanx - 3 = 0. We can solve this equation by factoring.

Let's factor out the common factor of tanx: tanx(tan²x + tanx - 3) - 3 = 0. Now, let's factor the quadratic expression inside the parentheses: tanx(tanx - 1)(tanx + 3) - 3 = 0. We can now set each factor equal to zero and solve for x.

First, tanx = 0. In the interval [0,2π), the solutions for this equation are x = 0 and x = π. Next, tanx - 1 = 0. Solving this equation gives us tanx = 1. In the interval [0,2π), the solution for this equation is x = π/4.

Lastly, tanx + 3 = 0. Solving this equation gives us tanx = -3. However, there are no solutions for this equation in the interval [0,2π) because the tangent function is positive in the first and third quadrants.

Therefore, the solutions to the equation tan³x + tan²x - 3tanx - 3 = 0 in the interval [0,2π) are x = 0, x = π, and x = π/4. Moving on to the function g(x) = 10x² + log(1 - 2x), we can analyze its properties.

The function g(x) is a quadratic function with an additional logarithmic term. The quadratic term 10x² is always positive and opens upward, indicating a U-shaped graph. The logarithmic term log(1 - 2x) is defined for values of x where 1 - 2x > 0, which leads to the condition x < 1/2.

The function g(x) has no real roots because the quadratic term is always positive and the logarithmic term is negative for values of x in the interval [0, 1/2). Therefore, the function g(x) does not intersect the x-axis in the interval [0, 2π).

To know more about trigonometric equation refer:

https://brainly.com/question/12537661

#SPJ11

dy/dt =y+2u, y(0)=5, u= step change of unity

Answers

The solution to the provided differential equation with the initial condition y(0) = 5 and u as a step change of unity is y = -2

The provided differential equation is: [tex]\[\frac{{dy}}{{dt}} = y + 2u\][/tex] with the initial condition: y(0) = 5 where u is a step change of unity.

To solve this differential equation, we can use the method of integrating factors.

First, let's rearrange the equation in the standard form:

[tex]\[\frac{{dy}}{{dt}} - y = 2u\][/tex]

Now, we can multiply both sides of the equation by the integrating factor, which is defined as the exponential of the integral of the coefficient of y with respect to t.

In this case, the coefficient of y is -1:

Integrating factor [tex]} = e^{\int -1 \, dt} = e^{-t}[/tex]

Multiplying both sides of the equation by the integrating factor gives:

[tex]\[e^{-t}\frac{{dy}}{{dt}} - e^{-t}y = 2e^{-t}u\][/tex]

The left side of the equation can be rewritten using the product rule of differentiation:

[tex]\[\frac{{d}}{{dt}}(e^{-t}y) = 2e^{-t}u\][/tex]

Integrating both sides with respect to t gives:

[tex]\[e^{-t}y = 2\int e^{-t}u \, dt\][/tex]

Since u is a step change of unity, we can split the integral into two parts based on the step change:

[tex]\[e^{-t}y = 2\int_{{-\infty}}^{t} e^{-t} \, dt + 2\int_{t}^{{\infty}} 0 \, dt\][/tex]

Simplifying the integrals gives:

[tex]\[e^{-t}y = 2\int_{{-\infty}}^{t} e^{-t} \, dt + 0\][/tex]

[tex]\[e^{-t}y = 2\int_{{-\infty}}^{t} e^{-t} \, dt\][/tex]

Evaluating the integral on the right side gives:

[tex]\[e^{-t}y = 2[-e^{-t}]_{{-\infty}}^{t}\][/tex]

[tex]\[e^{-t}y = 2(-e^{-t} - (-e^{-\infty}))\][/tex]

Since [tex]\(e^{-\infty}\)[/tex] approaches zero, the second term on the right side becomes zero:

[tex]\[e^{-t}y = 2(-e^{-t})\][/tex]

Dividing both sides by [tex]\(e^{-t}\)[/tex] gives the solution: y = -2

To know more about differential equation refer here:

https://brainly.com/question/32524608#

#SPJ11

Other Questions
Find the interest for a three-year CD for $5,000 at an interest rate of 6%, compounded annually. a. $955.08 b. $5,955.08 c. $5,983.40 d. $983.40 when the level of activity decreases variable costs will quizlet Subway: Make It What You Want When 17-year old Fred DeLuca enrolled in university in 1965, he needed a way to pay for his education. A family friend, Dr. Peter Buck, suggested he open a submarine sandwich shop and invested $1000. They opened their first location in Bridgeport, Connecticut, and by 1974, the partners had 16 Subway sandwich shops in that state. Their goal was to have 32 shops open by 1974. In order to fulfill this goal, the partners started franchising. Today, Subway has more than 44 000 shops in over 100 countries, including more than 3000 locations in Canada. The company is still privately owned and has stayed true to its core values and principles. These values include always providing exceptional service to its valued guests, providing the highest-quality menu items at a price everyone can afford and enjoy, and keeping operating costs low and ensuring it has great systems in place and never stops improving. The menu in all Subway shops, no matter where they are in the world, are basically the same. The only variations occur in countries like India, where a high proportion of the population is either Hindu or Muslim. In these areas, beef and pork are substituted with chicken, lamb, or pork. The menu is designed to provide affordable sandwiches made of fresh ingredients. The ordering process is also standard: pick your bread, meat or vegetable, toppings and sauce. Customers can come into the shops to order, order by phone, or order on the website. Customers also have several ways to get their sandwiches. They can pick up their order in the shop or have it delivered by a service such as Uber Eats. Subway uses a more focused approach to its promotional campaigns. The company started the "Make it What You Want" campaign in 2018 and has built on the theme since. Each installment of the campaign may focus on a different new product, such as a new type of bread like Harvest or a new topping such as guacamole, but the campaign is aimed at the millennial market. The television segments are more "playful and slightly rebellious," emphasizing the fact the menu can be customized to anyones taste. A representative from the company describes millennials as the demographic core of their customer base, and the new promotional campaigns emphasis their lifestyles and life experiences. Another television spot in the same series features millennials in a rural setting, enjoying outdoor sports. In this spot, the company wants to emphasis real people enjoying their lives. When Subway introduced meatless options to its menu, it took a slightly different approach to get their message out. In this case they brought Martha Stewart on board. In the television promotion Martha demonstrates her meatball tree. Subway was later than other companies in the Quick Service Restaurant (QSR) market to introduce a plant-based menu item so they wanted to stand out from the other companies promoting similar products. Lifestyle ads, plant-based new products and television ads aimed at the millennials, Subway seems to be on track to hit their goal to be ranked number one in the Quick Service Restaurant market. When Subway alters their menu slightly in countries such as India that have large Hindu and Muslim populations, what factor influencing the consumer buying decision are they catering to? a. social class b. values c. lifestyle d. opinion leader e. culture When a customer buys a Subway sandwich because they enjoyed one the week before, what type of information search is this customer performing? a. marketing- controlled b. external c. customer-to-customer d. internal e. evoked When Subway uses Martha Stewart to promote their new meatless sandwich, what role is Martha performing? a. opinion leader b. reference group member c. aspirational group member d. lifestyle expert e. extensive information provider When subway describes millennials as the demographic core of their customer base, what individual influence on the consumer buying decision does this represent? a. life-cycle stage b. age c. personality d. self-concept e. lifestyle A customer goes to a Subway restaurant every Tuesday with her friends. What type consumer buying decision is this? a. extensive b. involvement c. routine d. primary e. limited 4. Identify examples of carbohydrates, lipids, proteins, and nucleic acids, and discuss their functional and structural roles in the human body. 5. Describe the four levels of protein structure and explain why protein shape is important for protein function. Pricing: SBC Read the overview below and complete the activities that follow. Specialized Bicycle Components, Inc. (SBC) caters to the experienced cyclist. In this video, SBC's brand manager explains the company's segmentation and pricing strategy. This activity is important because pricing is one of the most challenging tasks that marketers need to perform. Understanding the issues and options when pricing a product is crucial. The goal of this activity is to test your understanding of pricing issues by applying chapter frameworks to the SBC example. Pricing objectives are the desired or expected result associated with a pricing strategy. Pricing objectives must be consistent with other marketing-related objectives (positioning, branding, etc.) as well as with the firm's overall objectives (including financial objectives) for doing business. As the video explains, SBC primarily targets experienced, knowledgeable cyclists that seek a particular biking experience. The price elasticity of demand for consumers within this target market is most likely: A- less than 1. B- greater than 1. C- equal to 1. 1.2.please show steps and calculationsCasablanca, Morocco is located at -7.63^{Circ} Longitude, 33.6^{Circ} Latitude. Enter the solar-zenith angles for this city on each of the following dates. Summer Solstice: Autumn Equino James is excited to obtain employment at a large practice in the suburbs. The position is titled assistant release of information technician. James is responsible for obtaining appropriate patient release of information to process requests for information from third parties (e.g., payers, attorneys, providers, and so on). James is also responsible for applying all state and federal laws to the release of protected health information (PHI). The training about the practices policies and procedures for appropriately releasing patient information included the following requirements: Validate a patients signature by comparing it to a patient-signed document in the patient record (e.g., consent to treatment, assignment of benefits). Explain to requestors that the practice requires ten days to process such requests for information. Contact the patient, if necessary, to verify that someone other than the patient has permission to obtain copies of patient records. James arrived at work eager to learn as much as possible about the new position and to actually be working in the profession. The team leader, Teresa, went on lunch break at a time that is normally busy for the release of information section. At first it was quiet, and James reviewed notes about official policies and procedures related to the release of information. Then, James felt ready to answer any questions in the absence of the team leader. James heard a person walk to the front counter. The person was older, quite well dressed and very tall. The person said they were there to pick up the spouses patient records. James was able to find the records and made copies of them. Upon review of the release of information signed by the patient, it appeared that the patient had authorized the spouse to pick up the records. Prior to handing over the copies of the record, James asked the person for identification for verification purposes. The person said the wallet was in the car. The person was impatient and muttered that it was ridiculous since everything was signed and in order. The person grabbed the manila envelope containing the copies of the patient records out of James hand and quickly left. James was quite distraught over this incident. When Teresa returned from lunch and saw that James was upset, James told her what happened. Teresas face dropped. "You are never supposed to give out patient records without a valid patient authorization and photo identification." 1.) What steps to the practice's release of information policy and procedure did James forget to follow? 2.) How should Teresa handle the situation, based on James having inappropriately released patient information? the power of organizations that control amateur sports is primarily related to Mary depends on coffee to wake up and must consume almost the same amount of coffee every week, with only small changes, in order to be able to go to work. What does this tell us? a. Coffee is a luxury good. b. All consumers in the market have a high demand for coffee. c. Mary has an inelastic demand for coffee. d. Mary has an elastic demand for coffee. Line Item 2015 Income Statement % of BaseSales Base Rate = 2,500,000COGS 1,500,000Gross Profit 1,000,000Selling, General, and Administrative Exp. 500,000EBITDA 500,000Interest Expense 250,000Depreciation and Amortization 100,000Earning Before Taxes 150,000 Taxes (30%) 50,000Net Income 100,000 environmental resistance may limit the size of populations by: the study of how genes translate hereditary information is referred to as A preliminary hearing is usually held for what three main purposes?a. determination of probable cause, discovery, decision on "binding over".b. determination of probable cause, discovery, presentation of evidence.c. determination of guilt, discovery, decision on "binding over".d. determination of mental capacity, discovery, decision on "binding over" Why galvanometer is used to measure small current? a doctor orders a patient to take 100 mg Persantine (blood thinner) daily. The available formulation is 25 mg Persantine/tablet You buy a call with a strike price of $33 and sell an identical put. The call has a premium of $8.69 and the put has a premium of $5.70. You also sell a call with a strike price of $36 and buy an identical put. This call has a premium of $7.52 and this put has a premium of $7.17. The risk-free rate in the economy is 3.87%. All 4 options are written on the same underlying asset and expire in exactly one year. If the primary asset is worth $35.64 when the options all expire, what is your net percentage return? Take your answer out to four decimals - for example, write 4.24% as .0424. ) Audrey plans to retire in around 25 years. Starting from January 2023, she will make 20 years (240 months) of monthly payments made at the end of each month into her retirement saving account. Five years after her last contribution, she will begin 240 monthly withdrawals of 5,000 per month made at the beginning of each month with the first one that would be withdrew on January 1,2048. After the negotiation with her investment agent, the retirement saving account earns interest of 4.8% p.a. compounded monthly for the whole duration including the duration of her contributions, the five years in between her contributions and the beginning of her withdrawals, and the duration of her withdrawals. (a) How much must be in Audrey's account at December 31, 2047 so that the account has sufficient funds for the subsequent withdrawals (rounding to the nearest integer)? For her monthly contributions in the first 20 years, she would contribute into the account monthly for the first 10 years. For the next 10 years, the monthly contributions would increase to 2 each. (b) Find (rounding to the nearest 1 decimal place). (c) Audrey would like to travel around the world after her retirement. She decides to include a withdrawal of 123,000 at January 1,2053 . Assuming that the amount of the regular monthly withdrawal remains to be the same, determine the date and the amount of her last withdrawal (the amount of the last withdrawal may be small than 5,000 ). For the amount, you may round your answer to the nearest integer. Corn liquor contains 3% invert sugars and 50% water, the rest can be considered solids. Beet molasses contains 50% sucrose, 1% invert sugars, and 18% water; the remainder is solids. A mixing tank contains 125 kg corn liquor and 45 kg beet molasses; water is then added to produce a diluted sugar mixture containing 2% (w/w) invert sugars.(a) How much water is required?(b) What is the concentration of sucrose in the final mixture? rohypnol, ghb, and ketamine are all examples of ________. Which of the following describes extreme binge drinking?a. ten or more drinks in a rowb. eight or more drinks in a rowc. about eight drinks a weekd. about five drinks a week