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TEA [102]
3 years ago
6

I need help, I’ll reward points + brainalist (btw I need help with 12, help a guy out please don’t just say “look at the link”)

Mathematics
1 answer:
mezya [45]3 years ago
4 0

Answer:

B (2)

Step-by-step explanation:

The formula for circumference of a circle is C=2piR

Replace R with 2

C=2pi(2)

C=12.5664

Formula for area of a circle is A=piR^2

A=pi(2)^2

A=12.5664

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f(1) = f(2) +3

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Put n=4 here so you found

f(1) = f(4) + 3* 3

= 22 +9

=31 ans




                             hope it helps

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