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Mathematics, 03.08.2019 15:30 Nelly745

A(r) is a function that gives the area of a circle with radius r. it can be written in equation form as a(r) = 3.14r2. what is the value of a(4)? a. 157.75 b. 25.12 c. 19.14 d. 50.24

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A(r) is a function that gives the area of a circle with radius r. it can be written in equation form...

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