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Pavel [41]
2 years ago
8

Which description is paired with its correct expression?

Mathematics
1 answer:
a_sh-v [17]2 years ago
7 0

Answer:

D.

Step-by-step explanation:

Hi there! You’re correct.

Twice the difference of nine and a number squared would look like

2(9-n^2)

I hope this helped! :)

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The vertices of figure BCDE have coordinates B(4, 4), C(−4, 4), D(−4, −4), and E(4, −4). The vertices of figure BꞌCꞌDꞌEꞌ have co
nikdorinn [45]
C.) A <span>dilation with a scale factor of 4, with center of dilation at the origin

Here, You can either draw the figure or compare the coordinates, 
B = (4, 4) then B' = (1, 1)
C = (-4, 4) then C' = (-1, 1)
D = (-4, -4) then D' = (-1, -1)
E = (4, -4) then E' = (1, -1)

So, Every coordinate is reducing by 4th factor... Hence, dilation factor is 4 about the origin

Hope this helps!</span>
4 0
2 years ago
Please hurry!!! Chose the equation below that represents the line that passes through the point (7,-2) and has a slope of -3
Varvara68 [4.7K]

Answer:

y + 2 = -3(x - 7)

Step-by-step explanation:

Write the equation using the point slope form y - y_1 = m(x-x_1). Substitute m = -3 and (7,-2).

y --2 = -3(x-7)\\y + 2 = -3(x-7)\\y +2 = -3x +21\\y = -3x +19

3 0
3 years ago
Tell wether the angles are adjacent or vertical. Then find the value of x.
Gre4nikov [31]

Answer:

The angles are vertical

Step-by-step explanation:

x+42+2x+1=180

put the like terms together i.e 2x+x+42+1=180

you get: 3x+43=180

Take 43 to th other side of 180 i.e 3x=180-43 i.e (180-43=137)

You get 3x=137

Divide both sides by 3

you get x=45.666666666667(Round off to get 45.67)

Substitute the value of x to the angles

x+42(45.67+42=87.67)

2x+1(2(45.67)+1=92.34

Add 87.67+92.34=180

THis shows that the angles are vertical

8 0
2 years ago
Can someone check my answers and tell me if it’s right or not? Thank you so much :)
inessss [21]

Answer:

yes i think u are correct

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The cost to store is $500. The markup rate is 12% What is the marking amount? $____ What is the selling price? $ ____
wel
$500 x 0.12 = $60

$500 x 0.88 = $440

<span>What is the marking amount? $60
What is the selling price? $440</span>
8 0
3 years ago
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