The Match of each point of intersection with the system of equations whose solution is at that point are
y = -2x − 3 / y = 2x − 1 --> Z y = x + 4 / y = -x + 2 --> X y = -2x − 3 / y = x + 4 --> Wy = 2x − 1 / y = -x + 2 --> YWhat is the point of intersection?For the 1st system is:
y = -2x - 3 ------- (1)
y = 2x - 1 (2)
So one need to equate (1) and that of (2) so it will be:
2x - 1 = -2x - 3
Add 2x to both sides
4x - 1 = - 3
Add 1 to both sides
4x = -2
Divide both sides by 4
x = -1/2
- Substitute the value of x in equation (1) or (2)
y = 2( ) - 1
y = -1 - 1
y = -2
Therefore, the point of intersection of the two equations is found to be (-1/2, -2), and it is shown by the letter Z.
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Use decomposition to find the area of the figure.
10 yd
8 yd
The area is
13 yd
square yards.
Answer:
The area is 92 square yards.
Step-by-step explanation:
We can decompose this figure into a rectangle and a triangle.
First, we can find the area of the rectangle.
A(rect) = length × width
A(rect) = 10 × 8
A(rect) = 80 yd²
Next, we can find the area of the triangle.
A(triangle) = (1/2) × base × height
[tex]A(\text{triangle}) = \dfrac{1}{2} \, (13 - 10) \times 8[/tex]
[tex]A(\text{triangle}) = \dfrac{3}{2} \times 8[/tex]
[tex]A(\text{triangle}) = 12 \text{ yd}^2[/tex]
Finally, we can add the two shapes' areas to get the area of the entire figure.
A = A(rect) + A(triangle)
A = 80 yd² + 12 yd²
A = 92 yd²
Answer: 92 yd²
Step-by-step explanation:
Decomposition means to break the shape into parts, but it's not necessary to break apart.
This is a trapezoid turned sideways A=1/2(b1+b1)h
b1=10
b2=13
h=8
A=1/2(10+13)8 =92 yd²
if you decompose, you can make the top a triangle and bottom a rectangle.
A(triangle) = 1/2(b)(h) b=3 h=8
1/2(b)(h)
= 12
A(rectangle)=bh b=10 h=8
=10*8
=80
Add the 2 and you get 92 again
is x+10 a factor of f(x)=5x^3+60x^2+109x+90
Answer: x + 10` is **not** a factor of `f(x) = 5x^3 + 60x^2 + 109x + 90`.
Step-by-step explanation: To determine if `x + 10` is a factor of `f(x) = 5x^3 + 60x^2 + 109x + 90`, we can use the Factor Theorem. The Factor Theorem states that if `f(a) = 0`, then `x - a` is a factor of `f(x)`.
In this case, we want to determine if `x + 10` is a factor of `f(x)`, so we can let `a = -10` and evaluate `f(-10)`:
`f(-10) = 5(-10)^3 + 60(-10)^2 + 109(-10) + 90`
`= -5000 + 6000 - 1090 + 90`
`= -1000`
Since `f(-10) ≠ 0`, we can conclude that `x + 10` is **not** a factor of `f(x) = 5x^3 + 60x^2 + 109x + 90`.
Pearl writes down seven consecutive integers, and adds them up. The sum of the integers is equal to 21 times the largest of the seven integers. What is the smallest integer that Pearl wrote down?
Answer: The sum of the integers is equal to $\frac{14}{3}$ times the largest of the seven integers. What is the smallest integer that pearl wrote down?.
Step-by-step explanation:
In triangle ABC, m∠B = (15x − 19)° and the measure of the exterior angle to ∠B is (9x − 17)°. Find m∠B.
116°
71°
64°
9°
Angle B, in the triangle ABC is solved to be 116 degrees
How to find angle BAngle B is solved using the concept of triangles and exterior angle relationship. This helps to know that addition of exterior angle to ∠B to angle B results to 180 degrees. Hence we have that:
exterior angle to ∠B + ∠B = 180
given data:
∠B = (15x − 19)°
exterior angle to ∠B is (9x − 17)°
plugging in gives
9x − 17 + 15x − 19 = 180
9x + 15x = 180 + 19 + 17
24x = 216
x = 9
For m∠B = (15x − 19)°
= 15 * 9 - 19
= 116 degrees
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Solve the following for θ, in radians, where 0≤θ<2π.
cos^2(θ)+7cos(θ)+4=0
Select all that apply:
4.03
2.65
1.65
2.25
1.43
The range of the cosine function is [-1, 1], there are no real solutions for θ in the given range.
We have,
We can solve the given quadratic equation for cos(θ) using the quadratic formula:
cos(θ) = (-b ± sqrt(b^2 - 4ac)) / 2a
Here, a = 1, b = 7, and c = 4.
Substituting these values, we get:
cos(θ) = (-7 ± √(7² - 4(1)(4))) / 2(1)
cos(θ) = (-7 ± √(41)) / 2
Since 0 ≤ θ < 2π, we need to consider only the solutions that lie in this range.
Using a calculator, we get:
cos(θ) ≈ -3.03 or -0.65
Since the range of the cosine function is [-1, 1], there are no real solutions for θ in the given range.
Therefore,
None of the given options (4.03, 2.65, 1.65, 2.25, 1.43) is correct.
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Blake & McKenzie Tax Services is a company serving 72 clients (as of the beginning of last month that is working on reorganizing its balanced scorecard. Currently, the company has the following performance metrics: online client satisfaction rating, client growth percentage (the number of total clients at the beginning of the current month compared to the number of total clients at the beginning of the prior month, market share, and profit margin. The company tracks these metrics from month to month. The company's target client growth percentage is 4% per month. Its target average online client satisfaction rating is 4.8 stars. Last month, the company noted the following data related to these metrics:
New clients 7
Lost clients 4
Market share 1.52%
Profit margin 65%
1. Working together in teams, create strategic objectives that each of the company's four performance metrics might represent.
2. Determine whether the company achieved its client growth percentage target last month.
3. Suppose that last month, the company received 55 five-star reviews, 10 four-star reviews, 3 three-star reviews, 1 two-star review, and 1 one-star review (some clients did not submit a review). Determine whether the company met its average online client satisfaction rating target.
4. Come up with at least one strategic initiative for the strategic objective of any performance metric target that you know the company did not meet last month.
Possible strategic initiatives for the strategic objective to satisfy clients:
• Implement additional training course on serving and interacting with clients
How to solvea. client review and client growth percentage metrics likely relate to a strategic objective to satisfy and increase clients. The market share and profit margin metrics likely relate to a strategic objective to increase profits.
b.
New clients during the month
7
Lost clients during the month
(4)
Increase in clients
3
Total clients at the beginning of last month
÷ 72
Client growth percentage last month
4.17%
target met
c.
Number of 5-star reviews
55 × 5 =
275
Number of 4-star reviews
10 × 4 =
40
Number of 3-star reviews
3 × 3 =
9
Number of 2-star reviews
1 × 2 =
2
Number of 1-star reviews
1 × 1 =
1
Sum total of stars
327
Total number of reviews
÷ 70
Average online client satisfaction rating
4.67
stars, target
not met
d.
Possible strategic initiatives for the strategic objective to satisfy clients:
• Implement additional training course on serving and interacting with clients
• Invite clients to provide additional feedback through a brief online survey
• Have the company owner send a personal apology to any clients providing a review of 2 stars or less, and offer them some kind of compensation; also ask for their feedback regarding what caused them dissatisfaction
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What is the area of the composite figure?
54 units2
152 units2
136 units2
160 units2
The area of the composite figure is 136 sq. units.
Given that a composite figure we need to find it area,
The figure is composed of a triangle and a rectangle,
So to find its area we will simply calculate the areas of both the polygons and add them,
So, the area of a triangle = 1/2 x base x height
The area of a rectangle = length x width
So,
The required area = 1/2 x (16-8)(13-7) + 7 x 16
= 1/2 x 8 x 6 + 112
= 24 + 112
= 136
Hence, the area of the composite figure is 136 sq. units.
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Which of the following equations describes the nth term for the sequence
The nth term of the sequence 4/5, 1/5, 1/20. 1/80..... is an = 4/5(1/4)^(n - 1)
How to determine the value of tthe nth term of the sequence?The definition of the function is given as
4/5, 1/5, 1/20. 1/80.....
The above definitions imply that we simply multiply 1/4 to the previous term to get the current term
Using the above as a guide, we have
First term, a = 4/5
Ratio, r = 1/4
So, we have the following equation
an = 4/5(1/4)^(n - 1)
Hence, the value of the nth term is an = 4/5(1/4)^(n - 1)
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Please see attachment below!
Answer:
5cm
Step-by-step explanation:
According to Pythagoras Theorem:
a^2+b^2=c^2
Given,
a=3, b=4, c=x
3^2+4^2=x^2
9+16=x^2
25=x^2
25 sqrt= 5
Therefore the answer is 5cm.
Point A is the center of this circle.
The ratio of the lengths of
to
is 2 : 1.
The required ratio of the lengths EF and AD is 2:1 for the given circle.
Given that a circle A with points B, C, D, E, F, and I on its circumference.
A chord of the circle is a line that connects any two locations on the circumference of any circle. The circle chords are BC, EF, and HI in this case.
The radius of the circle is defined as the line connecting center A with any point on the circle's perimeter. AD indicates the radius of the circle.
The diameter of the circle is any chord that passes through the center of the circle. The diameters of the circle are represented by EF and HI.
A diameter is usually twice as long as a radius.
As a result, the diameter-to-radius ratio will be 2:1.
Therefore, the required ratio of the lengths EF and AD is 2:1
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The missing figure has been attached below.
Write An Equation For The Quadratic Graph
The quadratic equation shown in the graph is:
y = (x + 2)*(x - 1)
How to find the quadratic equation?Remember that if h and k are the zeros of a quadratic equation of leading coefficient a, we can write it as:
y = a*(x - h)*(x - k)
Here we can see that the zeros are:
x = -2
x = 1
Then we can write it as:
y = a*(x + 2)*(x - 1)
And the y-intercept is -2, then we can write:
-2 = a*(0 + 2)*(0 - 1)
-2 = a*-2
-2/-2 = a
1 = a
The quadratic equation is:
y = (x + 2)*(x - 1)
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Simplify the following expression:
√ 16+√ 25 + 5
OA. 14 + 0i
OB. 9-5i
OC. 5+√41i
OD. 5+9i
Answer:
D. 5 +9i
Step-by-step explanation:
You want to simplify the expression ...
√(-16) +√(-25) +5
Imaginary numbersWe know that the value of √(-1) is represented by the constant i. This means we can simplify the expression like this:
[tex]\sqrt{-16}+\sqrt{-25}+5\\\\=\sqrt{-1(4^2)}+\sqrt{-1(5^2)}+5\\\\=4i+5i+5\\\\=\boxed{5+9i}\qquad\text{matches choice D}[/tex]
<95141404393>
What is the nth term of the quadratic sequence -4,-1,4,11,20
Answer:
76
Step-by-step explanation:
the second number = the first one + 3
the third number = the second one + 5
the fourth number = the third one + 7
the fifth number = the fourth one + 9
because of this, we can know that we add an odd number to the left number
so
sixth = 20+11=31
seventh = 31+13=44
eighth = 44+15=59
ninth = 59+17=76
One particular 13-foot tall cone of dry sand has a base diameter of 38.2 feet. To the nearest tenth of a degree, what is the angle of repose of this type of dry sand?
A different conical pile of the same type of sand as before (which will have the same angle of repose) is 10 feet tall. What is the diameter of the cone’s base?
Answer:
Step-by-step explanation:
34.0 degrees, 29.6 feet in Diameter.
This is a right triangle trigonometry question.
Use half of the diameter to form the base of the triangle (19.3 ft) with a height 0f 13.
Use Inverse Tangent function to find the angle of repose
round to 34.0
then use the angle of repose to solve trigonometric function of the tangent for the radius of the other cone.
switch denominator and tangent
multiply by 2 to get diameter of second cone
14.82*2≈29.6
Which proves that (x – 7) is a factor of the given polynomial function?
f(x) = x2 – 5x – 14
A. f(-7) = 0
B. f(0) = -7
C. f(1) = 7
D. f(7) = 0
plsssssssssssssssssssssssssssssssssssssssssssssssss
Answer: 22√3
Step-by-step explanation:
When finding perimeter you take l+l+w+w, or 2l + 2w.
Answer:
[tex]22\sqrt{3}[/tex]
Step-by-step explanation:
To find the perimeter, we have to add up all four sides.
[tex]5\sqrt{3} +3\sqrt{12} +5\sqrt{3} +3\sqrt{12}[/tex]
write this on your calculator then you'll get [tex]22\sqrt{3}[/tex]
Hope this helps
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Laura bought 25 rolls of yarn to make a
blanket. The multi-colored yarn cost $4
per roll. The solid colored yarn cost $3
per roll. She paid a total of $88. How
many different rolls of yarn did she buy?
Using a system of equations, the number of different rolls of yarn that Laura bought is as follows:
Multi-colored yarn = 13 rollsSolid-colored yarn = 12 rolls.What is a system of equations?A system of equations refers to simultaneous equations.
Simultaneous equations are two or more equations solved concurrently.
The total number of rolls of yarn bought = 25 rolls
The unit cost of multi-colored yarns = $4
The unit cost of solid-colored yarns = $3
The total cost paid for the 25 rolls of yarn = $88
Let the number of rolls of multi-colored yarns = x
Let the number of rolls of solid-colored yarns = y
Equations:Equation 1: x + y = 25
Equation 2: 4x + 3x = 88
Multiply Equation 1 by 3:
3x + 3y = 75 ... Equation 3
Subtract Equation 3 from Equation 2:
4x + 3x = 88
-
3x + 3y = 75
x = 13
Substitute x = 13 in either equations 1 or 2:
x + y = 25
13 + y = 25
y = 12
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Write an exponential function in the form � = � � � y=ab x that goes through points ( 0 , 19 ) (0,19) and ( 2 , 1539 ) (2,1539).
The exponential function that passes through the points (0,19) and (2,1539) is y = 19(9)ˣ.
We can use the two given points to form a system of two equations in two unknowns (a and b) to find the exponential function in the form y = abˣ that passes through those points.
Using the point (0,19), we get
19 = ab⁰
19 = a
Using the point (2,1539), we get
1539 = ab²
Substituting a = 19 from the first equation, we get
1539 = 19b²
Solving for b, we get
b² = 81
b = 9 or b = -9
Since we are dealing with an exponential function that models a growth, we will choose the positive value for b. Thus, b = 9.
Now that we know a and b, we can write the exponential function in the form y = abˣ
y = 19(9)ˣ
Therefore, the exponential function is y = 19(9)ˣ
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--The given question is incomplete, the complete question is given
" Write an exponential function in the form y=ab^x that goes through points ( 0 , 19 ) (0,19) and ( 2 , 1539 ) (2,1539)."--
Rick wants to determine if there is a correlation between the age and the cost of a used car.
What can be interpreted from this data?
There is no correlation between age and the cost of a used car
What can be interpreted from the scatter plotFrom the question, we have the following parameters that can be used in our computation:
The scatter plot
Where
x = Age
y = cost of used car
From the graph, we can see that
The points on the graph are scattered and they do not follow a definite pattern
This means that the scatter plot shows no correlation
And as such the correct option is (d)
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A charity is raising money by selling two thousand raffle tickets for $2 each. There is one grand prize worth $500, three secondary prizes worth $200 each, and eight third level prizes worth $20 each. What is the expected value of a $2 ticket? Answer is negative $1.358 but how do you calculate that?
The expected value of a $2 ticket is $0.63
How to determine the expected value of a $2 ticketTo calculate the expected value of a $2 ticket, we need to multiply the probability of winning by the value of the prize, then sum those products:
The Probability of winning the grand prize = 1/2000
Product: (1/2000) x $500 = $0.25
The Probability of winning a secondary prize: 3/2000
Product: (3/2000) x $200 = $0.30
The Probability of winning a third level prize: 8/2000
Product: (8/2000) x $20 = $0.08
The sum of the products:
$0.25 + $0.30 + $0.08 = $0.63
So the expected value of a $2 ticket is $0.63, meaning that on average, a person can expect to win $0.63 for every $2 they spend on a ticket.
The charity is expected to make a profit, which is why the answer is negative.
That is -$2 + $0.63 = -$1.37
So the expected profit for the charity per ticket sold is -$1.37, which is approximately the same as the given answer of negative $1.358(rounding off)
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Four functions are given below. Either the function is defined explicitly, or the entire graph of the function is shown.
For each, decide whether it is an even function, an odd function, or neither.
Answer:
Step-by-step explanation:
even function is symmetric along the y-axis
the y-axis acts like a mirror
f(x) = f(-x) for any real x
odd function is similar to even function except
one side is up-side-down. (rotational symmetric by 180 degree)
odd function is nice property since the definite integral
from -a to a always equals to 0
f(x) = -f(-x) for any real x
top-left:
even
top-right:
odd
bottom-left:
Neither
bottom-right:
odd
Ceci was feeding her guinea pig fluffles 30 grams of food each day and she needs to reduce the food by 15%. How many grams of food should Fluffles get each day?
Ceci should give Fluffles 26 grams of food each day after the 15% reduction.
Given that the original amount of food: 30 grams/day
Now, calculate the 15% reduction:
30 grams/day x 0.15 = 4.5 grams/day
Subtract the reduction from the original amount:
30 grams/day - 4.5 grams/day = 25.5 grams/day
Round the answer to the nearest gram:
25.5 grams/day ≈ 26 grams/day
Thus, she should give Fluffles 26 grams of food each day after the 15% reduction.
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NO LINKS!! URGENT HELP PLEASE!!!
Find an equation of the circle that has center C(7, -2) and is tangent to the line y = 5
Answer:
[tex](x-7)^2+(y+2)^2=49[/tex]
Step-by-step explanation:
A tangent of a circle is a straight line that touches the circle at only one point.
Since the circle is tangent to the horizontal line y = 5, the distance between the center of the circle and the line y = 5 is equal to the radius of the circle.
Given the center of the circle is C(7, -2), the y-coordinate of the center is y = -2. Therefore, the radius of the circle is the difference between y = 5 and y = -2:
[tex]\implies r=5-(-2)=7[/tex]
The equation of a circle is:
[tex]\boxed{(x-h)^2+(y-k)^2=r^2}[/tex]
where (h, k) is the center and r is the radius.
Substitute the given center (7, -2) and found radius, r = 7, into the equation of circle:
[tex](x-7)^2+(y-(-2))^2=7^2[/tex]
Simplify:
[tex](x-7)^2+(y+2)^2=49[/tex]
Therefore, the equation of the circle that has center C(7, -2) and is tangent to the line y = 5 is:
[tex]\boxed{(x-7)^2+(y+2)^2=49}[/tex]
The following is a list of movie tickets sold each day for 10 days.
7, 18, 23, 41, 34, 12, 48, 65, 57, 52
Which of the following intervals are appropriate to use when creating a histogram of the data?
0 – 9, 10 – 19, 20 – 29, 30 – 39, 40 – 50
0 – 14, 15 – 29, 30 – 44, 45 – 59, 60 – 74
0 – 15, 15 – 20, 20 – 35, 35 – 60, 60 – 75
0 – 20, 20 – 40, 40 – 60, 60 – 80
The appropriate intervals to use when creating a histogram of the data are:
0 – 14, 15 – 29, 30 – 44, 45 – 59, 60 – 74.
Given information:
The following is a list of movie tickets sold each day for 10 days.
7, 18, 23, 41, 34, 12, 48, 65, 57, 52.
When creating a histogram, you want to group the data into intervals or bins.
The intervals should be chosen so that they are of equal size, and they should also include all the data values.
In this case, the data values range from 7 to 65, so we need to choose intervals that cover this range.
The appropriate intervals to use when creating a histogram of the data are:
0 – 14, 15 – 29, 30 – 44, 45 – 59, 60 – 74
These intervals capture the range of values in the data set and have equal widths, making it easy to create a histogram.
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747.748 + 848.398 + 8,327.82 =
Answer:
Answer: 9,924.966.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Sorry it is hard to explain the process by typing!
The price of a desk was originally $80. The desk is now on sale for 16% off. What is the sale price of the desk? Use y to represent the sale price of the desk and write an equation to represent the problem.
Just write me the equation
How do the two plotted values compare, and what is their relationship to zero? The values are the same, and they have different distances to zero. The values are the same, and they are both three and one half units from zero. The values are opposites of each other and have different distances to zero. The values are opposites of each other, and they are both three and one half units from zero.
The correct statement regarding the values is given as follows:
The values are opposite from each other, and they are both 5/2 units from zero.
What is the absolute value function?The absolute value function is defined by the following piecewise rule, depending on the input of the function:
|x| = x, x ≥ 0.|x| = -x, x < 0.It measures the distance of a point x to the origin, hence, for example, |-2| = |2| = 0.
The values for this problem are given as follows:
-5/2.5/2.The numbers are the same, with the opposite signal, hence they are opposites.
Additionally, both numbers have the same absolute value of 5/2, hence they are both at a distance of 5/2 units from the origin.
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Four friends attend the cinema and buy tickets using this offer.
"Buy 3 tickets and get a ticket free."
They each pay £6.30
How much does a ticket cost?
Answer: The cost of a single ticket is £6.30.
Step-by-step explanation: The group bought 4 tickets and got one for free, which means they paid for 3 tickets. If each of them paid £6.30, then the total amount paid is 4 x £6.30 = £25.20.
To find the cost of a single ticket, we can divide the total paid by the number of tickets bought, which is 4:
£25.20 ÷ 4 = £6.30
Therefore, the cost of a single ticket is £6.30.
Find the area of the shaded sector of the circle to the nearest tenth
Answer:
Area of shaded portion= (θ/360º) × πrr
32/360°×22/7×3cm×3cm
(Simplify)
=2.514cm×cm
To nearest tenth= 2.500cm×cm
A plane intersecting a cylinder
forms a rectangular cross-section
Which describes how the plane
intersects the cylinder?
Answer: A cylindric section is the intersection of a plane with a right circular cylinder.
If we cut a cylinder perpendicularly to its base, the figure formed is a rectangle with a length equal to the height of the cylinder and a length equal to its diameter.