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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 the value of A(5)?

A:31.40
B:78.50
C:28.14
D:246.49

User Asgallant
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1 Answer

1 vote
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!
User Mennanov
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