Mathematics, 31.01.2020 05:03, bryan334

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(3)? 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(3)?

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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...