The values of the lengths of x and y in the triangle are x = 5.06 and y = 6.33
How to determine the values of the lengths of x and yFrom the question, we have the following parameters that can be used in our computation:
The sides of △ABC have lengths of 6.4, 8, and 11.4. An angle bisector meets the side of length 11.4.This means that
x + y = 11.4
The theorem of angle bisector states that:
"The angle bisector of a triangle divides the opposite side into two parts proportional to the other two sides of the triangle"
This means that
a/b = x/y
In this case, we have
6.4/8 = x/y
So, we have
0.8 = x/y
Make x the subject
x = 0.8y
Substitute x = 0.8y in x + y = 11.4
0.8y + y = 11.4
Evaluate
1.8y = 11.4
Divide by 1.8
y = 6.33
Recall that
x = 0.8y
So, we have
x = 0.8 * 6.33
Evaluate
x = 5.06
Hence, the lengths are x = 5.06 and y = 6.33
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Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. Currently, two extension lines are used, with two representatives handling the telephone inquiries. Calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. Each representative can accommodate an average of 15 calls per hour. The arrival rate is 30 calls per hour.
How many extension lines should be used if the company wants to handle 90% of the calls immediately?
fill in the blank 1
lines should be used
What is the average number of extension lines that will be busy if your recommendation in part (a) is used? Round your answer to four decimal places.
L = fill in the blank 2
What percentage of calls receive a busy signal for the current telephone system with two extension lines? Round your answer to two decimal places.
fill in the blank 3
%
The various answers to the question are:
To answer 90% of calls instantly, the organization needs four extension lines.The average number of extension lines that will be busy is FourFor the existing phone system with two extension lines, 34.25 % of calls get a busy signal.How many extension lines should be used if the company wants to handle 90% of the calls immediately?a)
A number of extension lines needed to accommodate $90 in calls immediately:
Use the calculation for busy k servers.
\($$P_{j}=\frac{\frac{\left(\frac{\lambda}{\mu}\right)^{j}}{j !}}{\sum_{i=0}^{k} \frac{\left(\frac{\lambda}{\mu}\right)^{t}}{i !}}$$\)
The probability that 2 servers are busy:
The likelihood that 2 servers will be busy may be calculated using the formula below.
\(P_{2}=\frac{\frac{\left(\frac{20}{12}\right)^{2}}{2 !}}{\sum_{i=0}^{2} \frac{\left(\frac{20}{12}\right)^{t}}{i !}}$$\approx 0.3425$\)
Hence, two lines are insufficient.
The probability that 3 servers are busy:
Assuming 3 lines, the likelihood that 3 servers are busy may be calculated using the formula below.
\(P_{j}=\frac{\frac{\left(\frac{\lambda}{\mu}\right)^{j}}{j !}}{\sum_{i=0}^{2} \frac{\left(\frac{\lambda}{\mu}\right)^{i}}{i !}}$ \\\\$P_{3}=\frac{\frac{\left(\frac{20}{12}\right)^{3}}{3 !}}{\sum_{i=0}^{3} \frac{\left(\frac{20}{12}\right)^{1}}{i !}}$$\approx 0.1598$\)
Thus, three lines are insufficient.
The probability that 4 servers are busy:
Assuming 4 lines, the likelihood that 4 of 4 servers are busy may be calculated using the formula below.
\(P_{j}=\frac{\frac{\left(\frac{\lambda}{\mu}\right)^{j}}{j !}}{\sum_{i=0}^{k} \frac{\left(\frac{\lambda}{\mu}\right)^{t}}{i !}}$ \\\\$P_{4}=\frac{\frac{\left(\frac{20}{12}\right)^{4}}{4 !}}{\sum_{i=0}^{4} \frac{\left(\frac{20}{12}\right)^{7}}{i !}}$\)
Generally, the equation for is mathematically given as
To answer 90% of calls instantly, the organization needs four extension lines.
b)
The probability that a call will receive a busy signal if four extensions lines are used is,
\(P_{4}=\frac{\left(\frac{20}{12}\right)^{4}}{\sum_{i=0}^{4} \frac{\left(\frac{20}{12}\right)^{1}}{i !}} $\approx 0.0624$\)
Therefore, the average number of extension lines that will be busy is Four
c)
In conclusion, the Percentage of busy calls for a phone system with two extensions:
The likelihood that 2 servers will be busy may be calculated using the formula below.
\(P_{j}=\frac{\left(\frac{\lambda}{\mu}\right)^{j}}{j !}$$\\\\$P_{2}=\frac{\left(\frac{20}{12}\right)^{2}}{\sum_{i=0}^{2 !} \frac{\left(\frac{20}{12}\right)^{t}}{i !}}$$\approx 0.3425$\)
For the existing phone system with two extension lines, 34.25 % of calls get a busy signal.
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Determine the surface area and volume. Note: The base is a square.
Answer:
volume=60cm3, surface area=96cm2
Step-by-step explanation:
volume=1/3×(6×6)×5
=60cm3
surface area= 4(1/2×6×5)+(6×6)
=96cm2
How many ways can you arange 2 Letters picked
from A, B, C, D? order matters
When selecting 2 letters from the set {A, B, C, D}, considering that the order matters, we can use the concept of permutations to calculate the number of possible arrangements.
The number of ways to arrange 2 letters from a set of 4 can be calculated using the formula for permutations:
P(n, r) = n! / (n - r)!
Where n is the total number of items (in this case, 4) and r is the number of items being selected (in this case, 2).
Using this formula, the number of ways to arrange 2 letters from A, B, C, D is:
P(4, 2) = 4! / (4 - 2)!
= 4! / 2!
= (4 x 3 x 2 x 1) / (2 x 1)
= 24 / 2
= 12
Therefore, there are 12 possible ways to arrange 2 letters selected from A, B, C, D when considering that the order matters.
~~~Harsha~~~
Answer:
Step-by-step explanation:
When selecting 2 letters from the set {A, B, C, D} and considering that the order matters, we can determine the number of possible arrangements using the concept of permutations.
The number of ways to arrange 2 letters from a set of 4 can be calculated using the formula for permutations:
P(n, r) = n! / (n - r)!
where P(n, r) represents the number of permutations of r objects chosen from a set of n objects.
In this case, we have n = 4 (the total number of letters) and r = 2 (the number of letters to be selected).
Using the formula, we can calculate:
P(4, 2) = 4! / (4 - 2)!
= 4! / 2!
= (4 × 3 × 2 × 1) / (2 × 1)
= 24 / 2
= 12
Therefore, there are 12 different ways to arrange 2 letters chosen from the set {A, B, C, D} when the order matters.
what are the possible rational zeros of f(x)=2x^3-15x^2+9x+22
Answer:
f'(x)=6×^2=30x+9
Step-by-step explanation:
take the derivative of both sides
use differentiation rule
calculate the derivative
simplify the expression
The distance between the points (10, -2) and (4, 6) is 10.
True
False
=
Answer:
True
Step-by-step explanation:
Use the distance formula: x^2 + y^2 = d^2; where d=distance
x = x2 - x1
y = y2 - y1
(10, -2), (4, 6) ==> (x1=10, y1=-2), (x2=4, y2=6)
x = 4 - 10 ==> plug in 4 for x2 and 10 for x1
x = -6
y = 6 - (-2) ==> plug in 6 for y2 and -2 for y1
y = 6 + 2
y = 8
(-6)^2 + (8)^2 = d^2 ==> plug in x and y back into the distance formula
36 + 64 = d^2
100 = d^2 ==> simplify
d = \(\sqrt{100}\)
distance = 10 ==> True
Find the length of the hypotenuse of the right triangle.
Answer:
The length of the hypotenuse is 100.
Step-by-step explanation:
To find the length of the hypotenuse, we use the following formula:
c=\(\sqrt{a^2+b^2}\)
c=\(\sqrt{28^2+96^2}\)
c=\(\sqrt{10,000}\)
c=100
Therefore, the length of the hypotenuse is 100.
What are all the factors of 40
Answer:
1, 2, 4, 5, 8, 10, 20, 40
Step-by-step explanation:
Answer:
1, 2, 4, 5, 8, 10, 20, 40 i think
Step-by-step explanation:
viet, quinn, and lucy are going to play bingo B 1-15, I-16-30, N-31-45, G-46-60, O-61-75.
Viet makes a probability model to describe the probability of each number being called first. Quinn makes a probability model to describe the probability of any particular letter being called first. Compare the probability models.
Comparing the two probability models, Viet's model provides more specific information about the likelihood of each number being called first within each letter range.
Viet's probability model describes the likelihood of each number being called first during the game of bingo. The model takes into account the different ranges of numbers for each letter and calculates the probability of each number within that range being called first.
For example, the probability of B-1 being called first is 1/15, whereas the probability of G-60 being called first is 1/15 as well.
On the other hand, Quinn's probability model describes the likelihood of any particular letter being called first.
This model calculates the probability of each letter (B, I, N, G, and O) being called first, regardless of the number. For example, the probability of the letter B being called first is 5/25 or 1/5, whereas the probability of the letter N being called first is also 1/5.
Quinn's model, on the other hand, provides a broader overview of the likelihood of any letter being called first. Both models are useful in their own way and can help players strategize their gameplay accordingly.
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to meet slope constraint rhonda wants to change the height of the zip-line 7 ft and end at a height 9 ft above the ground
Test Rhonda’s claim
All the three locations has been checked below.
Using Pythagoras theorem,
12² = 8² + x²
144 - 64 = x²
x= √80
x=8.9
Now, using Trigonometry
tan F = P/B
tan F= 8/8.9
and, sin F = P/H
sin F= 8/12 = 2/3
and, cos F = B/H
cos F= 12/8.9
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What is the sum of all the numbers less than 496 that divide evenly into 496?
Answer:
Step-by-step explanation : devise ----> divide496 = 2*2*2*2*31The 2's can be used in 5 ways, that is, not take anytake 1take 2take 3take all 4the 31 can be used in 2 ways, either take or not take itnumber of factors = 5*2 = 10but that includes taking all or noneif we correspond to none as the factor 1 and if we take all we would get 496the factors would be1, 2, 4, 8, 16, 31, 62, 124, 248, and 496
Please solve this
∫ (log(1 + x ^ 2))/((x + 1) ^ 2) dx
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
We have,
To solve the integral ∫ (log(1 + x²) / (x + 1)²) dx, we can use the method of substitution.
Let's substitute u = x + 1, which implies du = dx. Making this substitution, the integral becomes:
∫ (log(1 + (u-1)²) / u²) du.
Expanding the numerator, we have:
∫ (log(1 + u² - 2u + 1) / u²) du
= ∫ (log(u² - 2u + 2) / u²) du.
Now, let's split the logarithm using the properties of logarithms:
∫ (log(u² - 2u + 2) - log(u²)) / u² du
= ∫ (log(u² - 2u + 2) / u²) du - ∫ (log(u²) / u²) du.
We can simplify the second integral:
∫ (log(u²) / u²) du = ∫ (2 log(u) / u²) du.
Using the power rule for integration, we can integrate both terms:
∫ (log(u² - 2u + 2) / u²) du = log(u² - 2u + 2) / u - 2 ∫ (log(u) / u³) du.
Now, let's focus on the second integral:
∫ (log(u) / u³) du.
This integral does not have a simple closed-form solution in terms of elementary functions.
It can be expressed in terms of a special function called the logarithmic integral, denoted as Li(x).
Therefore,
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
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Two homebuyers are financing $137,000 to purchase a condominium. They obtained a 15-year, fixed-rate loan with a rate of 5.05%. They have been given the option of purchasing up to four points to lower their rate to 4.81%. How much will the four points cost them?
$1,370
$1,730
$4,580
$5,480
The cost of four points is:4 x $1,370 = $5,480Thus, the four points will cost the homebuyers $5,480.
Points can help lower mortgage rates on fixed-rate loans. The concept of points, which are basically prepaid interest, is a little complicated.
Each point is worth one percent of the loan amount, and paying points can lower your interest rate by a certain amount, typically about one-eighth to one-quarter of a percentage point.
The cost of points in the given scenario can be found using the following steps:
The loan amount to purchase a condominium is $137,000. The homebuyers obtained a 15-year fixed-rate loan with a rate of 5.05%.
If the homebuyers opt for four points, their loan rate will decrease to 4.81%.
To figure out how much the points will cost the homebuyers, we must first determine the cost of one point. Since one point is equal to 1% of the loan amount, one point on a $137,000 loan is:1% of $137,000 = $1,370
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For each value of w, determine whether it is a solution to 6w +9=33.
Is it a solution?
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
3 (no)
9 (no)
-7 (no)
-1 (no)
The solution to the equation 6w + 9 = 33 is 4.
The values of 2 = 3, 9, -7, and -1 are not solutions to 6w + 9 = 33.
What is a solution?Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.
We have,
6w + 9 = 33
6w = 24
w = 4
For w = 3
6 x 3 + 9 = 33
18 + 9 = 33
27 = 33
This is not true so it is not a solution.
For w = 9
6 x 9 + 9 = 33
54 + 9 = 33
63 = 33
This is not true so it is not a solution.
For = - 7
6 x (-7) + 9 = 33
-42 + 9 = 33
-33 = 33
This is not true so it is not a solution.
For w = -1
6 + (-1) + 9 = 33
-6 + 9 = 33
3 = 33
This is not true so it is not a solution.
Thus,
None of the values of w are solutions to 6w + 9 = 33.
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Pam’s Pet Supply Palooza buys bags of dog food (m) directly from the manufacturer at a 50% discount off the original market price. Pam then sells each bag of dog food at a price that is 3 times the amount that she paid for it.
Which expression correctly represents the cost of a bag of dog food to the customer in terms of (m), the original market price? (HOW DID YOU GET YOUR ANSWER PLEASE SHOW YOUR WORK. DO NOT ANSWER IF YOU DO NOT KNOW THE ANSWER OR DO NOT HAVE PROOF TO BACK YOUR ANSWER UP!!)
A. 0.5m
B. 1.5m
C. 3m
D. 3.5m
Answer:
\(Selling\ Price = 1.5m\)
Step-by-step explanation:
Given
\(Market\ Price = m\)
\(Discount = 50\%\)
Selling Price = 3 * Amount she paid
Required
Determine the selling price
If she gets a discount of 50%, then she pays 50% (i.e. 100 - 50%).
So, the amount she paid is:
\(Amount = 50\% * Market\ Price\)
\(Amount = 50\% * m\)
\(Amount = 0.5* m\)
\(Amount = 0.5m\)
She sells at three times that amount.
So, the selling price is:
\(Selling\ Price = 3 * 0.5m\)
\(Selling\ Price = 1.5m\)
A box has the shape of a rectangular prism with height 28 cm. If the height is increased by 0.2cm, by how much does the surface area of the box increase? L=13 W=8.7 H=28
The surface area of the box increases by 27.4 cm² when the height is increased by 0.2 cm.
To find the increase in surface area, we first need to calculate the initial surface area of the box and then calculate the surface area after increasing the height.
The formula for the surface area of a rectangular prism is given by:
Surface Area = 2*(length width + length height + width*height)
Initial Surface Area:
Length (L) = 13 cm
Width (W) = 8.7 cm
Height (H) = 28 cm
Initial Surface Area = 2*(138.7 + 1328 + 8.7*28)
Next, we calculate the new surface area after increasing the height by 0.2 cm. The new height is:
New Height = Initial Height + Increase in Height = 28 cm + 0.2 cm
New Surface Area = 2*(138.7 + 13(28+0.2) + 8.7*(28+0.2))
To find the increase in surface area, we subtract the initial surface area from the new surface area:
Increase in Surface Area = New Surface Area - Initial Surface Area
Let's calculate the values:
Initial Surface Area = 2*(138.7 + 1328 + 8.728) = 2(113.1 + 364 + 243.6) = 2*(720.7) = 1441.4 cm²
New Surface Area = 2*(138.7 + 13(28+0.2) + 8.7*(28+0.2)) = 2*(113.1 + 377.2 + 244.1) = 2*(734.4) = 1468.8 cm²
Increase in Surface Area = New Surface Area - Initial Surface Area = 1468.8 cm² - 1441.4 cm² = 27.4 cm²
Therefore, the surface area of the box increases by 27.4 cm² when the height is increased by 0.2 cm.
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Optimal Chapter-Flight Fare If exactly 212 people sign up for a charter flight, Leisure World Travel Agency charges $292/person. However, if
more than 212 people sign up for the flight (assume this is the case), then each fare is reduced by $1 for each additional person. Determine how
many passengers will result in a maximum revenue for the travel agency. Hint: Let x denote the number of passengers above 212. Show that the
revenue function R is given by R(x) = (212+x)(292-x).
passengers
What is the maximum revenue?
$
What would be the fare per passenger in this case?
dollars per passenger
Answer:
Dollars per passenger would be $252.
The maximum revenue is $63,404.
Step-by-step explanation:
Let's define the number of passengers above 212 as x.
The revenue function is given by R(x) = (212 + x)(292 - x).
We can expand and simplify the revenue function:
\(R(x) = 212 * 292 + 212 * (-x) + x * 292 + x * (-x)\)
= \(61804 - 212x + 292x - x^2\)
= \(-x^2 + 80x + 61804\)
The revenue function is a quadratic function in the form\(R(x) = -x^2 + 80x + 61804\), representing a downward-opening parabola.
To find the x-coordinate of the vertex (which gives the number of passengers for maximum revenue), use the formula \(x = -b/2a\), where \(a = -1\) and \(b = 80\).
\(x=\frac{-80}{2*(-1)}\)
\(= \frac{80}{2}\)
\(= 40\)
Therefore, the number of passengers above 212 for maximum revenue is 40.
Substitute x = 40 into the revenue function to find the maximum revenue:
\(R(x) = -(40)^2 + 80(40) + 61804\)
\(= -1600 + 3200 + 61804\)
\(= 61804 + 1600\)
\(= 63404\)
Hence, the maximum revenue is $63,404.
To determine the fare per passenger, subtract x from the base fare of $292:
Fare per passenger = Base fare - x
\(= 292 - 40\)
\(= 252\) Dollars per passenger.
how many more pizzas dose the Westland location need to sell the equal downtown and center city locations
Answer:
530 :)
Step-by-step explanation:
If you add up the dowton and center city locations and then subtract that from the amount of pizzas at the westland location, you get your answer
Which algebraic rule describes the translation of quadrilateral ABCD to quadrilateral A’B’C’D?
The algebraic rule that best describes the translation of quadrilateral ABCD to quadrilateral A'B'C'D' is P'(x, y) = (x + 8, y + 7). (Correct answer: A)
How to determine the translation of a quadrilateral on a Cartesian plane
According to the image attached we understand that the quadrilateral ABCD is transformed into quadrilateral A'B'C'D' by applying pure translation. Translations are a kind of rigid transformation, defined as a transformation applied on a geometric locus such that Euclidean distance is conserved at every point of the construction.
Vectorially speaking, translations are described by the following formula:
P'(x, y) = P(x, y) + T(x, y) (1)
Where:
P(x, y) - Original pointP'(x, y) - Resulting pointT(x, y) - Translation vector.By direct comparison, we conclude that the quadrilateral ABCD is translated 8 units in the +x direction and 7 units in the +y direction. Hence, the algebraic rule that describes the translation of quadrilateral ABCD to quadrilateral A'B'C'D' is:
P'(x, y) = (x, y) + (8, 7)
P'(x, y) = (x + 8, y + 7)
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Follow the guided instructions below to create the line of reflection that would map the pink figure onto the blue figure.
The slope of the dotted line is 3, and the slope of the line of reflection is 5/3.
What is slope?Slope is a mathematical term that describes how steep a line is. It is described as the proportion of a pair of points' vertical changes to their horizontal changes. To put it another way, it is the increase of a line over its course. Since it is used to define and examine linear connections between two variables, slope is significant in mathematics.
The slope of the line is given by the equation:
slope = (y2 - y1) / (x2 - x1)
For the dotted line in the center the two coordinates are (-4, 0) and (-7, -9).
Substituting the values:
slope = (-9 - 0) / (-7 - (-4))
= -9 / (-3)
= 3
For the line of reflection the coordinates are (0, 3) and(-3, -2).
Substituting the values:
slope = (-2 - 3) / (-3 - 0)
= -5 / -3
= 5/3
Hence, the slope of the dotted line is 3, and the slope of the line of reflection is 5/3.
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please i’ll fail if i don’t get this right. please i’ll give brainlyist The current temperature of 15°F below zero is 18°F below the high temperature of the day. What is the high temperature for the
day?
OA. 5°F
ов. 33°F
OC. 3°F
OD. 33°F
Answer:
I think its C
Step-by-step explanation:
Evaluate 4!5!/3!7! Simplify as much as possible
Consider the following function. f(x) = 3x − e x i. Plot the graph of the function f(x) in R and identify the interval that the first positive root lies. Write the command(s) that you use and the result(s).
The interval of the function f(x) = 3 · x - eˣ such that the function shall be positive is x ∈ (0.6191, 1.5121).
How to find the interval of a function that cannot be solved for x analytically
In this question we have an expression that combines polynomic and exponential expression, whose variable x cannot be cleared by analytical approaches, but by numerical and graphical methods. Herein we decide to find the interval by graphical methods, using a graphing tool:
First, write the function in explicit form (f(x) = 3 · x - eˣ). Second, find the two points such that the function goes through the x-axis (horizontal axis). Third, define the set of possible x-values by interval notation such that y > 0.
Then, the points of the function that are on the x-axis are (x₁, y₁) = (0.6191, 0) and (x₂, y₂) = (1.5121, 0). Then, the interval of the function f(x) = 3 · x - eˣ such that the function shall be positive is x ∈ (0.6191, 1.5121).
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A recipe calls for 5 cups of cashews for 4 cups of flour. Using the same recipe, how many cups of flour will you need for 2 cups of cashews? » How many cups of flour will you need for 2 cups of cashews?
Answer:
8/5 cups
Step-by-step explanation:
equal 5/4 to 2/x x representing the amount of flour
cross multiply: 5x=8
divide: x=8/5
David Seal's annual base premium is $812. His driver-rating factor is 1.4. How much is his annual premium?
can someone explain this? i’m super confused
Answer:
Co-interior angles adds to 180
54+75=129
180-129=51
? Is 51 degrees
Hope this helps!
Answer:
51
Step-by-step explanation:
/_xwv =54
/_vxw = 75
if xwv = 54 then xyv = 54
and if vxw= 75 then xvy = 75
so vxy = 180-(75+54)
= 51
Please help me for 15 points
a bridge in the shape of a parabolic arch is modelled by this function (see pic).
Answer:
(C) 25,35 and 175,35
The area of a circle with a diameter of 4.275" is ___ sq in
Answer:
Step-by-step explanation:
diameter = 4.275"
r = 4.275 ÷ 2 = 2.1375"
Area of circle = πr²
= 3.14 * 2.1375 * 2.1375
= 14.3463
≈ 14.3 in²
Make stem and leaf plot
Answer:
make a stem and leaf plot as it says
Step-by-step explanation:
answer it yourself
SOMEONE PLEASEEEE HELP ME ASAP.
Answer:
y=-3x+2
Step-by-step explanation:
Answer:
y=-3x+2
Step-by-step explanation: