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Alekssandra [29.7K]
4 years ago
5

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)?

Mathematics
2 answers:
alexandr402 [8]4 years ago
5 0
F(r) = 3.14r^2....and ur looking for f(5)....so basically all u do is sub in 5 for r.

f(5) = 3.14 * 5^2
f(5) = 3.14 * 25
f(5) = 78.50 <===


pentagon [3]4 years ago
4 0

Answer:

D. 78.50

Step-by-step explanation:

apex.

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