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The function f(r) gives the area of a circle what is the answer if f(r)=3.14 r square what is f(5)?

The function f(r) gives the area of a circle what is the answer if f(r)=3.14 r square what is f(5)?
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The function f(r) gives the area of a circle what is the answer if f(r)=3.14 r square what is f(5)?

User Henk J Meulekamp
by
7.5k points

1 Answer

3 votes
Substitute 5 for wherever r appears.

f(5)=3.14 (5)(5) = 78.5

The answer is 78.5

Hope this helps!

User Alex Dzeshko
by
7.6k points
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