Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 170036This question is from textbook elementary and Intermediate algebra concepts and application
: can someone help me in solve this problem I'm 60 year old lady gone back to school and math is not my strong subject help is needed. thank you.
A function gives the value of C as 2 muliply(22/7) xr.
Find C when r=21cm and r= 84cm
This question is from textbook elementary and Intermediate algebra concepts and application
: can someone help me in solve this problem I'm 60 year old lady gone back to school and math is not my strong subject help is needed. thank you.
A function gives the value of C as 2 muliply(22/7) xr.
Find C when r=21cm and r= 84cm

Answer by checkley77(3848) About Me  (Show Source):
You can put this solution on YOUR website!
C=2*pi*r
C=2*22/7*21
C=44/7*21
C=924/7
C=132 CM. ANS.
C=2*22/7*84
C=44/7*84
C=3,696/7
C=528 CM. ANS.