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3 years ago

What is the answer for |x|-7=8 A) x=1 B) x= 15 C)x= -1 or 1 D) x= -15 or 15

1 answer:

8 0

The answer is D. "x=-15 or 15."

You can solve this by adding seven on both sides.
|x|-7=8
+7 +7
------------
|x|=15

Therefore, x is either equal to 15 or -15.

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Step-by-step explanation:

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$A_{MSC}=\dfrac{1}{2}MS\cdot MC=\dfrac{1}{2}\cdot (\sqrt{2}-1)a\cdot (\sqrt{2}-1)a=\dfrac{(\sqrt{2}-1)^2a^2}{2}=\dfrac{(3-2\sqrt{2})a^2}{2}$

Consider right triangle PTS. The area of this triangle is

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The area of the quadrilateral PMCT is the difference in area of triangles PTS and MSC:

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