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OpenStudy (anonymous):
If C(r) was a cirumference function, what would C(2) be if C(r)=6.28r
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OpenStudy (saifoo.khan):
Since 2 is replaced by "r". Do the same thing. C(r) = 6.28r C(2) = 6.28(2)
OpenStudy (anonymous):
So 6.28 is the answer? Or do I have to multiply 6.28 by 2 for the answer.
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