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Mumz [18]
3 years ago
10

Solve for x 3x + 10 - 4 = 21​

Mathematics
1 answer:
Ivan3 years ago
6 0

Answer:

X = 5

Step-by-step explanation:

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What point would A' be after a dilation with a scale factor of 2 centered at (-7,-2)?​
musickatia [10]

Answer:

(-14,-4)

Step-by-step explanation:

Given the pre-image A=(-7,-2)

If A is dilated with a scale factor of 2

Then the image of A,

A' = (-7,-2) X 2

We multiply each coordinate point by 2

=(-7*2,-2*2)=(-14,-4)

Therefore, the point A' would be: (-14,-4)

3 0
3 years ago
In the following system of equations, what would you do to eliminate x? 2x + 4y = 10 x - 3y = 12
Anvisha [2.4K]
2x +4y =10x-3y =12

2x +4y =12 -----eq. 1

10x-3y =12 -------eq.2


2x =12 -4y [using eq. 1]
x = (12-4y)/ 2
= 6 -2y

Now, substitute the value of x in eq. 2
10 (6-2y)-3y =10
60 -20y -3y =10
-23 y = 10 -60
y = -50 / -23
y = 50/23


Now, substitute this value of y in any equations given above

10 x-3 (50/23) =12
10x - (150/23)= 12
x= 426/230
8 0
3 years ago
If the rectangle WXYZ was reflected about the x-axis, the resulting image would have coordiantes W’(-8,5) X’(-7,-5) Y’(8,10) and
svp [43]

Answer:

W'(8,5) X'(7,-5) Y'(-8,10) Z'(-4,-10)

I would say that this is the answer, but when I graphed it out, it didn't make a rectangle, so I believe that you or your teacher typed something wrong.

5 0
3 years ago
Read 2 more answers
Find the area of the circle with diameter 19.4 cm to the nearest tenth. Use 3.14 for π. *
Amiraneli [1.4K]
19.4 divided by 2, to find the radius. Then square it, and then multiply it by pi. Which gives you A as the answer
5 0
3 years ago
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Which of the following is the expansion of (2m - n)7?
WINSTONCH [101]
-7n + 14m

Enjoy !! :)
4 0
3 years ago
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