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Solving Real-World Problems involving Rational Numbers: Mastery Test

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Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

A rectangle is 12 feet long and 5 feet wide. If the length of the rectangle is increased by 25% and the width is decreased by 20%, what is the

change in the area of the rectangle?

The change in the area of the rectangle is

square feet.

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answer: 12

step-by-step explanation:

because yes

asdsaddsa

step-by-step explanation:

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet