A cone with a radius of 3 cm and a height of 6 cm is shown below. Enter the volume of the cone, in cubic
centimeters. Round your answer to the nearest hundredths place.
Need Help ASAP!

A Cone With A Radius Of 3 Cm And A Height Of 6 Cm Is Shown Below. Enter The Volume Of The Cone, In Cubiccentimeters.

Answers

Answer 1

Answer:

V ≈ 56.55 cm³

Step-by-step explanation:

the volume (V) of a cone is calculated as

V = [tex]\frac{1}{3}[/tex] πr²h ( r is the radius and h the height )

here r = 3 and h = 6 , then

V = [tex]\frac{1}{3}[/tex] π × 3² × 6

   = [tex]\frac{1}{3}[/tex] π × 9 × 6

   = [tex]\frac{1}{3}[/tex] π × 54

   = π × 18

   = 18π

   ≈56.55 cm³ ( to the nearest hundredth )


Related Questions

Use the net to find the surface area of the prism.




241 ft2


196 ft2


251 ft2


286 ft2

Answers

Answer: Surface area of prism = 286 ft²

Hope it helped :D

Seismologists use the Richter scale to express the energy, or magnitude, of an earthquake. The Richter magnitude of an earthquake, M, is related to the energy released in ergs, E shown by the formula, M= 2/3 log(e/10^12)

1. What would be the magnitude if the energy was 10^18?____

2. If an earthquake has a magnitude of 9.8, how much energy in ergs was released by this earthquake?____

Answers

If the energy released is [tex]10^{18}[/tex] ergs, the magnitude of the earthquake would be 4.

If the magnitude of the earthquake is 9.8, the energy released would be 5.01 × [tex]10^{26}[/tex] ergs.

1) To find the magnitude, M, when the energy released, E, is [tex]10^{18}[/tex] ergs, we can use the given formula:

[tex]M = (2/3) log(E/10^{12})[/tex])

Substituting E = [tex]10^{18}[/tex] ergs, we get:

[tex]M = (2/3) log(10^{18}/10^{12})\\M = (2/3) log(10^6)\\M = (2/3) * 6\\M = 4[/tex]

Therefore, if the energy released is [tex]10^{18}[/tex] ergs, the magnitude of the earthquake would be 4.

2) To find the energy released, E, when the magnitude of an earthquake is 9.8, we can rearrange the given formula as:

[tex]E = 10^{(1.5M + 12)}[/tex]

Substituting M = 9.8, we get:

[tex]E = 10^{(1.5*9.8 + 12)}\\E = 10^{(14.7 + 12)}\\E = 10^{26.7}\\E = 5.01 * 10^{26} ergs\\[/tex]

Therefore, if the magnitude of the earthquake is 9.8, the energy released would be [tex]5.01 * 10^{26}[/tex] ergs.

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The accompanying data are the length (in centimeters) and girths (in centimeters) of 12 harbor seals. Find the equation of the regression line. Then construct scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given x-values. if meaningful. If the x-value is not meaningful to predict the value of y. explain why not. (a) x = 140 cm (b)x = 172cm (c) x = 164cm (d) x = 158 cm

Answers

To find the equation of the regression line for the given data, we need to use a statistical software or a calculator. Once we have the equation, we can plot the data on a scatter plot and draw the regression line.


     Using the regression equation, we can predict the value of y (girth) for each of the given x-values (length). However, if the x-value is not within the range of the observed data, the prediction may not be meaningful. For example, if x = 140 cm or x = 172 cm are outside the range of the observed lengths, the predicted girth may not be accurate. On the other hand, if x = 164 cm or x = 158 cm are within the range of the observed lengths, the predicted girth may be more reliable.
Overall, regression analysis helps us understand the relationship between two variables and make predictions based on that relationship. In this case, we can use the regression equation to estimate the girth of harbor seals based on their length, but we need to be mindful of the limitations of the data and the prediction.

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A sample of n= 12 scores ranges from a high of X = 7 to a low of X= 4. If these scores are placed in a frequency distribution table, how many X values will be listed in the first column? O a. 12 O b.4 Oc.3 10 d. 7

Answers

The number of X values listed in the first column of the frequency distribution table will be d) 4.

In a frequency distribution table, the first column typically represents the range or interval of the scores. Since the given sample has a range from X = 7 to X = 4, the first column of the frequency distribution table will include the four distinct X values: X = 4, X = 5, X = 6, and X = 7.

hese are the possible values within the given range, and thus, there will be 4 X values listed in the first column. So the correct option is d in this question.

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A lamina occupies the part of the disk x2 + y2 < 16 in the first quadrant and the density at each point is given by the function p(x, y) = 5(x2 + y2). A. What is the total mass? 32pi B. What is the moment about the x-axis? 1024/5 C. What is the moment about the y-axis? 1024/5 D. Where is the center of mass? ( 1024/5 1024/5 . 1024/5 ) E. What is the moment of inertia about the origin? 1024/3

Answers

A. The total mass is 40π.

B. The moment about the x-axis is 1024/5.

C. The moment about the y-axis is also 1024/5.

D. The center of mass is located at (8/5, 8/5).

E. The moment of inertia about the origin is 1024/3.

A. The total mass can be found by integrating the density function over the region:

m = ∬D p(x,y) dA

= ∫0^2π ∫0^4 5(r^2)(r dr dθ)

= 40π

Therefore, the total mass is 40π.

B. The moment about the x-axis can be found by integrating the product of the density function and the square of the distance to the x-axis over the region:

Mx = ∬D y p(x,y) dA

= ∫0^2π ∫0^4 5(r^2)(r sinθ)(r dr dθ)

= 1024/5

Therefore, the moment about the x-axis is 1024/5.

C. The moment about the y-axis can be found by integrating the product of the density function and the square of the distance to the y-axis over the region:

My = ∬D x p(x,y) dA

= ∫0^2π ∫0^4 5(r^2)(r cosθ)(r dr dθ)

= 1024/5

Therefore, the moment about the y-axis is 1024/5.

D. The center of mass can be found using the formulas:

xbar = My / m

ybar = Mx / m

Plugging in the values we found in parts B and C, we get:

xbar = (1024/5) / (40π) = 8/5

ybar = (1024/5) / (40π) = 8/5

Therefore, the center of mass is at the point (8/5, 8/5).

E. The moment of inertia about the origin can be found by integrating the product of the density function and the square of the distance to the origin over the region:

I = ∬D (x^2 + y^2) p(x,y) dA

= ∫0^2π ∫0^4 5(r^2)((r^2 sin^2θ) + (r^2 cos^2θ))(r dr dθ)

= 1024/3

Therefore, the moment of inertia about the origin is 1024/3.

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100 PTS

The circle below has a center Z. Suppose that mXY = 122 find the following

Answers

(a) The measure of angle XZY is 122°.

(b) The measure of angle XWY is 61°.

Given a circle.

Z is the center of the circle.

Given that,

Measure of arc XY = 122°

Measure of an arc is the measure of the central angle formed by the end points of the arc.

So,

∠XZY = 122°

We have the theorem that an angle subtended by an arc of a circle has a measure that is twice the angle where the arc subtends at any other point on the circle.

So,

∠XZY = 2 ∠XWY

∠XWY = 122 / 2 = 61°

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please help
1)PIECE WISE - DEFINED FUNCTION F(x)= 2x+20, 0≤x≤ 50 X + 10, 50 ≤ x ≤ 100 0-5x X > 100

2)EYALUATE THE FUNCTION FOR F( 101), F (75), AND F (10)​

Answers

1. The piecewise-defined function is as follows:

For 0 ≤ x ≤ 50: F(x) = 2x + 20

For 50 ≤ x ≤ 100: F(x) = x + 10

For x > 100: F(x) = 0 - 5x

2. Evaluating the function for the given values:

F(101) = -505

F(75) = 85

F(10) = 40

1. The piecewise-defined function is as follows:

For 0 ≤ x ≤ 50:

F(x) = 2x + 20

For 50 ≤ x ≤ 100:

F(x) = x + 10

For x > 100:

F(x) = 0 - 5x

2. Evaluating the function for different values:

a) F(101):

Since 101 is greater than 100, we use the third equation:

F(101) = 0 - 5(101) = -505

b) F(75):

Since 75 falls within the range 50 ≤ x ≤ 100, we use the second equation:

F(75) = 75 + 10 = 85

c) F(10):

Since 10 is less than 50, we use the first equation:

F(10) = 2(10) + 20 = 40

Therefore, F(101) = -505, F(75) = 85, and F(10) = 40.

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theater tickets cost 4.85 the tax rate is 7.75. what’s the total cost ?

Answers

Answer:

$5.23

Step-by-step explanation:

Another way to write the tax rate is 7.75% or as a decimal 0.0775.

So 4.85 x .0775 = 0.375875 ===>>> that's the amt of tax you'll pay. Now add that to the cost of the ticket.

4.85 + 0.375875 = 5.225875 which rounds to approx $5.23.

Find the Fourier series of the given function f(x), which is assumed to have the period 21. Show the details of your work. Sketch or graph the partial sums up to that including cos 5x and sin 5x.
1. f(x) = x2 = (-1 < x < TT)

Answers

The Fourier series for f(x) is: f(x) = \frac{\pi^2}{3} + \sum_{n=1}^{\infty} \frac{2}{n^2} \cos(nx)$

The Fourier series of f(x) = x^2, where -π < x < π, can be found using the formula:

$a_0 = \frac{1}{2\pi} \int_{-\pi}^{\pi} x^2 dx = \frac{\pi^2}{3}$

$a_n = \frac{1}{\pi} \int_{-\pi}^{\pi} x^2 \cos(nx) dx = \frac{2}{n^2}$

$b_n = 0$ for all n, since f(x) is an even function

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Use the Ratio Test to determine whether the series is convergent or divergent.
[infinity] 5
k!
sum.gif
k = 1

Answers

The series ∑ (k = 1 to infinity) 5^k / k! is convergent.

The Ratio Test is a method used to determine the convergence or divergence of a series by comparing the ratio of consecutive terms to a limit. For the given series, let's apply the Ratio Test:

Taking the ratio of consecutive terms:

|5^(k+1) / (k+1)!| / |5^k / k!|

Simplifying the expression:

|(5^(k+1) / (k+1)!) * (k! / 5^k)|

|5 / (k + 1)|

Now, we take the limit of this ratio as k approaches infinity:

lim(k->infinity) |5 / (k + 1)| = 0

Since the limit is less than 1, we can conclude that the series converges by the Ratio Test. In other words, the series ∑ (k = 1 to infinity) 5^k / k! is convergent.

The Ratio Test works by comparing the growth rate of consecutive terms in a series. If the ratio of consecutive terms approaches a value less than 1 as k goes to infinity, then the series converges. In this case, as the term k increases, the ratio 5 / (k + 1) approaches 0, indicating that the series converges.

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\sqrt{-2x^{2}-2x+11 }=\sqrt{-x^{2} +3}

Answers

Answer:

Step-by-step explanation:

sqrt{-2x^{2}-2x+11 }=\sqrt{-x^{2} +3}

Square both sides:

-2x^2 - 2x + 11 = -x^2 + 3

0 = x^2 + 2x - 8

( x + 4)(x - 2) = 0

x = -4, 2.

As the original equation contains square roots some of these roots might be extraneous.

Checking:

x = -4

sqrt(-2(-4)^2 - 2(-4) + 11 =  sqrt(-13)

sqrt (-(-4)^2 + 3) = sqrt(-13)

x = 2:

sqrt(-2(4) - 2(2) + 11) = sqrt(-8 - 4 + 11) = sqrt(-1)

sqrt(-(2)^2 + 3) = sqrt(-1)

So both are roots

My brother recently asked what this answer was? Can anyone help?

Answers

Answer:

side a would be 2 units side be would be 4 units and c would be 5 units

Step-by-step explanation:

you make 100$ doing 10 hours of yard work. find the unit rate in dollars per one hour

Answers

To find the unit rate in dollars per one hour, divide the total amount earned by the number of hours worked.

Unit rate = Total amount earned / Number of hours worked

In this case, the total amount earned is $100 and the number of hours worked is 10.

Unit rate = $100 / 10 hours = $10/hour

Therefore, the unit rate in dollars per one hour is $10.

The value(s) of lambda such that the vectors v1 = (-3,1,-2), V2=(0,1,lambda) and v3=(lambda, 0, 1)are linearly dependent is are - lambda) and v2 = (6, 5 + 2 lambda) are linearly dependent is (are): a) These vectors are always linearly independent b) lambda=0 c) lambda={0,2} d) lambda={-3, 3} e) lambda={-1, 3} f) None of the above

Answers

In mathematics, a vector is a mathematical object that represents both magnitude and direction. It is typically represented as an ordered list of values and can be used to describe physical quantities such as force, velocity, and acceleration.

To find the value(s) of lambda such that the vectors v1=(-3,1,-2), v2=(0,1,lambda), and v3=(lambda,0,1) are linearly dependent, we'll use the determinant method. We'll create a matrix with the three vectors as rows and find its determinant. If the determinant is zero, the vectors are linearly dependent.

The matrix is:

| -3  1  -2  |
|  0  1 lambda|
|lambda 0  1  |

Now, let's find the determinant:

(-3) * | 1 lambda|
          | 0  1  |  - (1) * | 0 lambda|
                                  |lambda 1 | + (-2) * | 0  1  |
                                                     |lambda 0|

Calculating the minors:

(-3) * (1) - (1) * (-lambda^2) + (-2) * (-lambda) = -3 + lambda^2 + 2*lambda

Now, we set the determinant equal to zero since we want the vectors to be linearly dependent:

-3 + lambda^2 + 2*lambda = 0

Solving the quadratic equation:

lambda^2 + 2*lambda + 3 = 0

Since this quadratic equation has no real solutions (the discriminant is negative), it means that for any value of lambda, the vectors will always be linearly independent.

So, the correct answer is:
a) These vectors are always linearly independent

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Enter the number to complete the linear combination. gcd(82, 26) yields sequence: 82 26 4 2 0 4 = 82 - 3 . 26 2 = 26 - 6 . 4 After substitution: 2 = 26 - 6. (82 - 3 . 26) 2 = ____ . 82 + ___ . 26

Answers

Explanation: The process used to solve this problem is the Euclidean algorithm, which involves finding the greatest common divisor (gcd) of two numbers by performing a sequence of division and remainder operations. In this case, gcd(82, 26) is found by dividing 82 by 26 to get a quotient of 3 and a remainder of 4, then dividing 26 by 4 to get a quotient of 6 and a remainder of 2, and finally dividing 4 by 2 to get a quotient of 2 and a remainder of 0.

Once the gcd is found, the algorithm is reversed to express it as a linear combination of the two original numbers. This is done by substituting each remainder in the sequence back into the preceding division equation and solving for it in terms of the other numbers. For example, 4 = 82 - 3 . 26 means that 4 can be expressed as a combination of 82 and 26 with coefficients of -3 and 1, respectively. Similarly, 2 = 26 - 6 . 4 means that 2 can be expressed as a combination of 82 and 26 with coefficients of 6 and -19, respectively.

To complete the linear combination, we substitute the expression for 4 into the expression for 2 and simplify:

2 = 26 - 6 . (82 - 3 . 26) = 26 - 6 . 82 + 18 . 26
2 = -474 . 82 + 194 . 26

Therefore, the missing coefficients in the linear combination are -474 for 82 and 194 for 26.

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A time for the 100 meter sprint of 15.0 seconds at a school where the mean time for the 100 meter sprint is 17.5 seconds and the standard deviation is 2.1 seconds. Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if its z-score is less than -2.00 or greater than 2.00.

Answers

The z-score simply tells us how many standard deviations away from the mean a particular value falls, and we use that information to assess whether the value is typical or unusual in the given context.

To find the z-score corresponding to the given value of a 100-meter sprint time of 15.0 seconds, we need to use the formula z = (x - μ) / σ, where x is the value, μ is the mean, and σ is the standard deviation. Plugging in the values, we get:

z = (15.0 - 17.5) / 2.1
z = -1.19

This means that the given value is 1.19 standard deviations below the mean. To determine whether it is unusual, we need to compare the absolute value of the z-score to 2.00. Since 1.19 is less than 2.00 and greater than -2.00, we can conclude that the time of 15.0 seconds is not unusual in this context.

In other words, while the time is below the mean, it is not so far below that it is considered unusual or unexpected. The z-score simply tells us how many standard deviations away from the mean a particular value falls, and we use that information to assess whether the value is typical or unusual in the given context.

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A time of 15.0 seconds is within 2 standard deviations from the mean and is not considered unusual.

To find the z-score, we use the formula:

z = (x - μ) / σ

where x is the value we want to convert to a z-score, μ is the mean, and σ is the standard deviation.

Plugging in the values given in the problem, we have:

z = (15.0 - 17.5) / 2.1

z = -1.19

So the z-score corresponding to the 15.0 second time is -1.19.

To determine whether this value is unusual, we compare the absolute value of the z-score to 2.00. Since |-1.19| = 1.19 is less than 2.00, we can conclude that the value of 15.0 seconds is not unusual according to our definition.

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Type the correct answer in each box use numerals instead of words if necessary use / for the fraction bar(s)

Answers

The exponent of x is 33 and the exponent of y is zero.

How do you simplify an exponential expression?

You can use a few exponentiation principles and exponentiation attributes to simplify an exponential statement.

By reducing the exponents, merging like terms, and removing negative exponents, you can simplify an exponential expression by using the rules of exponents. To make the expression as simple as feasible, it's crucial to adhere to the rules' specific order and consistency.

We have;

[tex]x^8y^-26/x^14y^-5 * x^-39 y^-21\\x^8y^-26/x^-25y^-26\\x^33y^0\\x^33[/tex]

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10. Are the triangles congruent? If so, how would you justify your
conclusion?
A. ALMK AJKM by AAS
B. ALMK
AJKM by ASA
C. ALMK
AJKM by SAS
D. ALMK AJKM by SSS
E. The triangles are not congruent.

Answers

Answer:

ima say B

Step-by-step explanation:

use the tabulated values of f to evaluate the left and right riemann sums for n = 10 over the interval [0,5]

Answers

To evaluate the left and right Riemann sums for n = 10 over the interval [0,5], we need to use tabulated values of the function f. These Riemann sums are approximations of the definite integral of f over the given interval.

The Riemann sum is a method for approximating the definite integral of a function over an interval by dividing the interval into subintervals and evaluating the function at specific points within each subinterval. The left Riemann sum uses the left endpoint of each subinterval, while the right Riemann sum uses the right endpoint.

In this case, we are given that n = 10, which means we need to divide the interval [0,5] into 10 subintervals of equal width. The width of each subinterval can be found by taking the difference between the endpoints of the interval and dividing it by the number of subintervals (in this case, 10).

Once we have the width of each subinterval, we can determine the specific points within each subinterval where we will evaluate the function f. The left Riemann sum will use the left endpoint of each subinterval as the evaluation point, while the right Riemann sum will use the right endpoint.

By summing up the function values at these evaluation points and multiplying by the width of each subinterval, we can obtain the left and right Riemann sums for the given function f over the interval [0,5] with n = 10. These sums provide approximations of the definite integral of f over the interval and can be used to understand the behavior of the function within that range.

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A rental car agency charges $190.00 per week plus $0.15 per mile to rent a car. How many miles can you travel in one week for $266.50

Answers

Answer:

510 miles

Step-by-step explanation:

Let 'm' be the miles traveled.

    To find the charge for 'm' miles, multiply m by rate per mile.

Charge for 'm' miles = 0.15*m = 0.15m

If we add the fixed charge per week with the charge for 'm' miles, we will get the total charge.

                       Total charge = Fixed charge + charge for m miles

                                              = 190 + 0.15m

190 + 0.15m = 266.50

Subtract 190 from both sides,

          0.15m = 266.50 - 190

         0.15m  =  76.50

Divide both sides by 0.15,

                [tex]m =\dfrac{76.50}{0.15}\\\\\\m=\dfrac{7650}{15}\\\\\\m = 510 \ miles[/tex]

you+have+$400,000+saved+for+retirement.+your+account+earns+4%+interest.+how+much+will+you+be+able+to+pull+out+each+month,+if+you+want+to+be+able+to+take+withdrawals+for+20+years?

Answers

You will be able to pull out approximately $2,358.21 per month for 20 years.

To calculate the monthly withdrawal amount, we can use the formula for calculating the future value of an ordinary annuity. The formula is:

A = P * (1 - (1 + r)^(-n)) / r

Where:

A = future value (amount to be withdrawn each month)

P = present value (initial savings)

r = interest rate per period (4% per year, so 4%/12 = 0.3333% per month)

n = number of periods (20 years, so 20 * 12 = 240 months)

Plugging in the values:

A = 400,000 * (1 - (1 + 0.003333)^(-240)) / 0.003333

Calculating this equation gives us approximately A = $2,358.21 per month. This means you will be able to withdraw around $2,358.21 each month for a period of 20 years while maintaining your savings.

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let r be a partial order on set s, and t ⊆ s. suppose that a,a′ ∈ t, where a is greatest and a′ is maximal. prove that a = a′

Answers

Let r be a partial order on set S, and let t be a subset of S. If a and a' are both elements of t, where a is the greatest element and a' is a maximal element, then it can be proven that a = a'.

To prove that a = a', we consider the definitions of greatest and maximal elements. The greatest element in a set is an element that is greater than or equal to all other elements in that set. A maximal element, on the other hand, is an element that is not smaller than any other element in the set, but there may exist other elements that are incomparable to it.

Given that a is the greatest element in t and a' is a maximal element in t, we can conclude that a' is not smaller than any other element in t. Since a is the greatest element, it is greater than or equal to all elements in t, including a'. Therefore, a is not smaller than a'.

Now, to prove that a' is not greater than a, suppose by contradiction that a' is greater than a. Since a' is not smaller than any other element in t, this would imply that a is smaller than a'. However, since a is the greatest element in t, it cannot be smaller than any other element, including a'. This contradicts our assumption that a' is greater than a.

Hence, we have shown that a is not smaller than a' and a' is not greater than a, which implies that a = a'. Therefore, if a is the greatest element and a' is a maximal element in t, then a = a'.

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Evaluate the factorial expression 20!/ 17!(3-1)! Choose the correct answer from the options below a. 190 b. 1368 c. 3420 d. 58140

Answers

Answer:

c. 3420

--------------------------

n! is called the factorial of n and shown as the product of the integers from 1 to n:

n! = n * (n - 1) * (n - 2) *...* 3 * 2 * 1

The given expression can be evaluated as:

20! / [ 17! (3 - 1)!] = 20*19*18 * 17! / (17!2!) = 20*19*18/2 = 3420

Hence the correct choice is c.

by computing the first few derivatives and looking for a pattern, find d939/dx939 (cos x)

Answers

The d939/dx939 (cos x) is equal to (-1)^939 cos x.

To find d939/dx939 (cos x), we need to compute the first few derivatives of cos x and look for a pattern. The derivative of cos x is -sin x, and the second derivative is -cos x.

Continuing this pattern, we see that the nth derivative of cos x is (-1)^n cos x. Thus, the 939th derivative of cos x is (-1)^939 cos x. This means that the derivative of cos x with respect to x has a pattern of alternating signs and is always equal to cos x.

In summary, by computing the first few derivatives and identifying a pattern, we can determine the 939th derivative of cos x with respect to x.

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Find the work done by F over the curve in the direction of increasing t. 5) F- -8yi+ 8xj +3z4k; C: r(t) cos ti+ sin tj, 0 sts7 4) f(x, y, z)_ex7, y8+27 d the work done by F over the curve in the direction of increasing t. 5) F- -8yi + 8xj+ 3z4k; C: r(t) - cos ti + sin tj, 0sts7 e vector field F to determine if it is conservative. Find the work done by F over the curve in the direction of increasing t. 5) F- -8yi+ 8xj +3z4k; C: r(t) cos ti+ sin tj, 0 sts7

Answers

The work done by the vector field F = -8y i + 8x j + 3z^4 k over the curve C, given by r(t) = cos(t) i + sin(t) j, from t = 0 to t = π/4, in the direction of increasing t, is equal to -1/4.

To calculate the work done by the vector field F over the curve C, we use the line integral formula:

Work = ∫ F · dr,

where dr represents the differential displacement vector along the curve C.

In this case, F = -8y i + 8x j + 3z^4 k and r(t) = cos(t) i + sin(t) j. To find dr, we differentiate r(t) with respect to t:

dr = (-sin(t) i + cos(t) j) dt.

Now, we can calculate F · dr:

F · dr = (-8sin(t) i + 8cos(t) j + 3z^4 k) · (-sin(t) i + cos(t) j) dt

      = -8sin(t)cos(t) + 8cos(t)sin(t) dt

      = 0.

Since the dot product is zero, the work done by F over the curve C is zero. Therefore, the work done by F over the curve C, in the direction of increasing t, from t = 0 to t = π/4, is equal to 0.

Hence, the work done by the vector field F over the curve C in the direction of increasing t is 0.

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uppose the p-value for a hypothesis test is 0.063. using ? = 0.05, what is the appropriate conclusion?
Question options:
A. Reject the alternative hypothesis.
B. Do not reject the null hypothesis.
C. Do not reject the alternative hypothesis.
D. Reject the null hypothesis.

Answers

The appropriate conclusion is B. Do not reject the null hypothesis.

When conducting a hypothesis test, the p-value is a measure of the strength of evidence against the null hypothesis. It is the probability of obtaining a test statistic as extreme as the one observed or more extreme, assuming the null hypothesis is true.

The standard significance level for hypothesis testing is 0.05. If the p-value is less than or equal to the significance level, then we reject the null hypothesis and conclude that the alternative hypothesis is supported. If the p-value is greater than the significance level, then we fail to reject the null hypothesis.

In this case, the p-value is 0.063 and the significance level is 0.05. Since the p-value is greater than the significance level, we fail to reject the null hypothesis and conclude that there is not enough evidence to support the alternative hypothesis. It is important to note that failing to reject the null hypothesis does not necessarily mean that the null hypothesis is true, but rather that we do not have enough evidence to reject it.

Therefore, the appropriate conclusion is not to reject the null hypothesis. It is important to understand the concept of p-values and significance levels when interpreting the results of a hypothesis test. Therefore, the correct option is B.

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Solve for x.
3x² + 3x - 18 = 0
X = [?], [?]

Answers

Answer:

x=2; x=-3

Step-by-step explanation:

3[tex]x^{2}[/tex]+3x-18=0

We can use the method of completing the square to solve (you can also use the quadratic formula):

3([tex]x^{2}[/tex]+x)-18=0

We can add [tex]\frac{1}{4}[/tex] inside the parentheses because this completes the square, as you will see soon. By adding [tex]\frac{1}{4}[/tex] in the parentheses, we are actually adding [tex]\frac{3}{4}[/tex] to the equation because everything in the parentheses is multiplied by 3. Therefore, we have to add [tex]\frac{3}{4}[/tex] to the other side of the equation to keep both sides equal.

3([tex]x^{2}[/tex]+x+[tex]\frac{1}{4}[/tex])-18=[tex]\frac{3}{4}[/tex]

Add 18 to both sides.

3([tex]x^{2}[/tex]+x+[tex]\frac{1}{4}[/tex])=[tex]\frac{75}{4}[/tex]

Divide by 3 on both sides.

([tex]x^{2}[/tex]+x+[tex]\frac{1}{4}[/tex])=[tex]\frac{25}{4}[/tex]

[tex](x+\frac{1}{2}) ^{2}[/tex]=[tex]\frac{25}{4}[/tex]

Now, take the square root of both sides. Note that there will be a plus minus because squaring the negative of a number will get the same answer as squaring the positive.

x+[tex]\frac{1}{2}[/tex] = ±[tex]\sqrt{\frac{25}{4}}[/tex]

x+[tex]\frac{1}{2}[/tex]=±[tex]\frac{5}{2}[/tex]

We now have two equations and can solve both.

x+[tex]\frac{1}{2}[/tex]=[tex]\frac{5}{2}[/tex]

Subtract 1/2 on both sides to get

x=2

and

x+[tex]\frac{1}{2}[/tex]=-[tex]\frac{5}{2}[/tex]

Subtract 1/2 on both sides to get

x=-3

Jennifer’s new bike costs $180. Her
parents said that they would pay for
half the cost, and she would have to
pay the rest. If it is on sale for 15%
off, what is the amount she will have
to pay?

Answers

Answer:

Step-by-step explanation:

Explanation:

First you need to find what

40

%

of

180

is.

To find

10

%

of a number you have to move the decimal place back by one.

For example,

10

%

of

120.0

would be

12.00

(

12

)

.

Using this technique we find that

10

%

of

180

is

18

.

now we times

18

by

4

to create 40% of the cost.

18

×

4

=

72

Now minus 72 from 180 (the total cost of the bike).

180

72

=

$

108

So , this means Jenny paid $108 for her bike.

90+90=180 and 15% off ion kno what to do after that

small p-values indicate that the observed sample is inconsistent with the null hypothesis. T/F?

Answers

True. Small p-values support the rejection of the null hypothesis and provide evidence in favor of an alternative hypothesis.

Small p-values indicate that the observed sample data provides strong evidence against the null hypothesis. The p-value is a measure of the strength of evidence against the null hypothesis in a hypothesis test. It represents the probability of observing the obtained sample data, or more extreme data, if the null hypothesis is true.

When the p-value is small (typically less than a predetermined significance level, such as 0.05), it suggests that the observed sample data is unlikely to have occurred by chance under the assumption of the null hypothesis. In other words, a small p-value indicates that the observed data is inconsistent with the null hypothesis.

Conversely, when the p-value is large (greater than the significance level), it suggests that the observed sample data is likely to occur by chance even if the null hypothesis is true. In such cases, there is not enough evidence to reject the null hypothesis. Therefore, small p-values support the rejection of the null hypothesis and provide evidence in favor of an alternative hypothesis.

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Write the general conic form equation of the parabola with vertex at (-2, 3) and focus at (1, 3)

y^2 - 6y - 3x + 3 = 0
y^2 + 6y - 12x + 33 = 0
y^2 - 6y - 12x - 15 = 0

Answers

The correct general conic form equation of the parabola with a vertex at (-2, 3) and a focus at (1, 3) is y^2 - 6y - 12x + 15 = 0.

To find the equation of a parabola given its vertex and focus, we need to determine the value of p, which represents the distance between the vertex and the focus. In this case, the vertex is (-2, 3), and the focus is (1, 3). The x-coordinate of the focus is greater than the x-coordinate of the vertex, indicating that the parabola opens to the left.

The distance between the vertex and the focus is given by the equation p = |(x2 - x1)/2|, where (x1, y1) is the vertex and (x2, y2) is the focus. Substituting the given values, we get p = |(1 - (-2))/2| = 3/2.

Using the general conic form equation for a parabola, which is (y - k)^2 = 4p(x - h), where (h, k) is the vertex and p is the distance between the vertex and the focus, we substitute the values and simplify to obtain y^2 - 6y - 12x + 15 = 0.

Therefore, the correct equation for the parabola is y^2 - 6y - 12x + 15 = 0.

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