3 years ago

If f(r)= 3.14 r^2 what is f(3)

Mathematics

1 answer:

KIM [24]3 years ago

6 0

Answer:

f(3) = 28.26

Step-by-step explanation:

Substitute r = 3 into f(r) , that is

f(3) = 3.14 × 3² = 3.14 × 9 = 28.26

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