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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)=3.14r^2. what is the value of A(3) A.18.84 B.28.26 C.88.74 D.12.14
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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)=3.14r^2. what is the value of A(3)

A.18.84
B.28.26
C.88.74
D.12.14

User Andrey Fedoseev
by
8.6k points

2 Answers

1 vote

Answer:

B.28.26

Explanation:

User Pstoppani
by
9.0k points
3 votes
Simple...

you know A(r)=3.14
r^(2)

It's just telling you what is the answer when r=3?-->>>


A(3)=3.14*3^(2)

A(3)=3.14*9

A(3)=28.26

Thus, your answer, B.
User LeBrown Jones
by
8.2k points
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