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egoroff_w [7]
3 years ago
13

F(r) = 3.14r2 . What is f(3)?

Mathematics
1 answer:
lbvjy [14]3 years ago
4 0

Answer:

The value of f(3) = 28.26

Step-by-step explanation:

You have to do is to substitute r = 3 into the function :

f(r) = 3.14 \times  {r}^{2}

f(3) = 3.14 \times  {3}^{2}

f(3) = 3.14 \times 9

f(3) = 28.26

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