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4 years ago

Use the graph of △GHI and its image to answer the question.

Mathematics

1 answer:

Tresset [83]4 years ago

8 0

Answer:

D. Rotate △GHI 90∘ clockwise about the origin and dilate it by a factor of 2/3 through the origin

Step-by-step explanation:

Segment HI points south, and segment H'I' points west, so a rotation of 90° clockwise is involved. (This eliminates choices A and C.)

The image is smaller than the original by a factor of 2/3, eliminating choice B and confirming choice D.

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Alex definitely had the most work done between all of them

7 0

3 years ago

Read 2 more answers

Use substitution to solve the system of equations.

kakasveta [241]

Answer:

C (let me know if I am wrong!)

Step-by-step explanation:

We need to solve the equation.

If 5x+y = -24, then -24 - 5x = y.

x+ 3(-24-5x) = -2

= -14x-72=-2

= -14x-72+72=-2+72

= -14x=70

= -5

If x = -5, then -5 + 3y = -2.

3y = -2+5

3y = 3

y=1

So the answer is C.

4 0

3 years ago

Consider the equation below

s344n2d4d5 [400]

Answer: B

Step-by-step explanation:

Let's solve the given equation. Then we can see which other equation has the same answer.

-5n+31=-14n-5

36=-9n

n=-4

We need to fina another equation that gives n=4 as the answer.

A. Incorrect

3-6n+3n=-3+4-4n

3-3n=1-4n

n=-2

B. Correct

$\frac{11}{4} n+2=-3+\frac{3}{2}n$

$\frac{5}{4}n=-5$

$n=-4$

C. Incorrect

1=0.75n+3.25

-2.25=0.75n

n=-3

D. Incorrect

-1-22n=-20n-9

8=2n

n=4

7 0

3 years ago

Write the standard equation of a circle with center (2, −5) and radius 16.

astra-53 [7]

The standard equation of circle when center is (h,k) and radius is 'r'

$\left ( x - h \right )^{2} + \left ( y - k \right )^{2} = r^{2}$

h = 2 and k = - 5, radius = 16

So equation of the circle is given by

$\left ( x - 2 \right )^{2} + \left ( y - (-5) \right )^{2} = 16^{2}$

$\left ( x - 2 \right )^{2} + \left ( y + 5) \right )^{2} = 256$

7 0

3 years ago

Read 2 more answers

What is the value of <br> 6x²+4x+8 when x =7

Ann [662]

Answer:

330

Step-by-step explanation:

6x²+4x+8

Let x=7

6 ( 7)^2 + 4(7) +8

6*49+ 28+8

294+28+8

330

8 0

3 years ago