henriquefrydman henriquefrydman

26-10-2016
Mathematics

contestada

The function f(r) gives the area of a circle with radius r. It can be written in equation form as f(r) = 3.14r2. What is f(5)?

A. 28.14
B. 31.40
C. 246.49
D. 78.50

Respuesta :

tyestaples17 tyestaples17

26-10-2016

It is 31.4 because you plug in the function of 5 into r

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