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9966 [12]
2 years ago
10

Describe the transformation that maps the pre-image (ΔA) to the image (ΔA').

Mathematics
2 answers:
Art [367]2 years ago
8 0

Answer:

D.)a rotation 270° counterclockwise around the origin

Step-by-step explanation:

i just got it right on the test.

ser-zykov [4K]2 years ago
7 0

Answer:

A)  : \\  a \:  rotation \:  \\  180°  \: clockwise \:  around  \: the  \: origin

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Given the formula y = -1/2x - 4, what is the slope and y-intercept of the graph? PLEASE HELP!​
svet-max [94.6K]

Answer:

the slope is -1/2 and the y-intercept is -4

Step-by-step explanation:

The original formula is y=mx+b. m is the slope of the graph and b is the y-intercept. You just plug in the numbers to the original formula to get the formula for the graph. The slope is always the number that is right next to the x, or the number which is multiplied by the x. The y-intercept is always the number that is not by x.

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A high definition radio station charges $200 per year in addition to $50 per month for the first 3 months to recieve its broadca
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3 years ago
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Which property of addition is used in the expression?<br> 0.5+ (0.4+0.8) = (0.5 +0.4) + 0.8
AfilCa [17]
Commutative property i think
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What is the area of a triangle h=5 b=6
soldi70 [24.7K]

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The answer is 15

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area of triangle is half * base * height

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What is the first step to solve the following system of equations using substitution?
Akimi4 [234]

Answer:

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

Thus, option A) is true.

The solution to the system of equations be:

x = 4, y = 5

Step-by-step explanation:

It is important to remember that when we solve the system of equations, the first step we need to do is to solve one of the equations for one of the variables.

Given the system of equations

x - y = -1

2x - y = 3

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

x-y=-1

Add y to both sides

x-y+y=-1+y

x=-1+y

Thus, option A) is true.

<u>NOW LET US SOLVE THE REMAINING PORTION</u>

\mathrm{Subsititute\:}x=-1+y to solve for y

\begin{bmatrix}2\left(-1+y\right)-y=3\end{bmatrix}

-2+y=3

y=5

For x = -1 + y

substitute y = 5

x=-1+5

x=4

Thus, the solution to the system of equations be:

x = 4, y = 5

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2 years ago
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