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2 years ago

Simplify the expression 3(x + 9) by distributing. Which expression is equivalent?

Mathematics

1 answer:

notsponge [240]2 years ago

8 0

3(x+9)

3 multiply both x and 9

3x+27

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Answer:

The area of the shaded portion of the figure is $9.1\ cm^2$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The shaded area is equal to the area of the square less the area not shaded.

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step 1

Find the area of square ABCD

The area of square is equal to

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we have

$b=4\ cm$

substitute

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step 2

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substitute

$A=\pi (2)^{2}$

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Therefore, the area of 2 "not-shaded" regions is:

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step 3

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