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muminat
3 years ago
11

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 t

he value of A(5)?
A:31.40
B:78.50
C:28.14
D:246.49
Mathematics
1 answer:
Jobisdone [24]3 years ago
3 0
B: 78.50

If you plug in 5 for r, then you get  3.14 * 25, which is equal to 78.5 

Hope this helps!
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