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Mathematics, 27.09.2019 07:30 Mattixwillard

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)=3.14r^2. what is the value of a(4)

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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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