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Luda [366]
3 years ago
15

-8(7 + x) = 137 What can be used to solve this problem

Mathematics
1 answer:
alexgriva [62]3 years ago
3 0

Answer:

-24.5

Step-by-step explanation:

-56+-8x=137

-8x=196

x=-24.5

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Answer:

(x_2,y_2) = (2x_m - x_1 ,2y_m - y_1 )

Step-by-step explanation:

Given

\left(\frac{x_1+\:x_2}{2},\:\:\frac{y_{1\:}+y_2}{2}\right)\:=\:\left(x_m,\:y_m\right)

Required

Determine x2, y2

Start by splitting the expression

x_m = \left(\frac{x_1+\:x_2}{2}) and y_m = (\frac{y_{1\:}+y_2}{2})

Solving for x2 in x_m = \left(\frac{x_1+\:x_2}{2})

Multiply through by 2

2 * x_m = \frac{x_1 + x_2}{2} * 2

2x_m = x_1 + x_2

Make x2 the subject;

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Similarly:

y_m = (\frac{y_{1\:}+y_2}{2})

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Make y2 the subject;

y_2 = 2y_m - y_1

Hence:

(x_2,y_2) = (2x_m - x_1 ,2y_m - y_1 )

7 0
3 years ago
A) Divide the numbers 1 to 8 by 9. Observe the decimals and di
bearhunter [10]

Answer:

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2 years ago
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sattari [20]
One could use the relation

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2 years ago
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kow [346]

Answer: 45 degrees I think.

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Please check if you have a protractor.

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