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hayley12341 hayley12341
  • 26-05-2016
  • Mathematics
Answered

whats the answer i have no idea and I'm really having a hard time

whats the answer i have no idea and I m really having a hard time class=

Verified Answer :

punkrocker4744
punkrocker4744 punkrocker4744
  • 26-05-2016

remember order of operations exponents first r^2 since r=7 it is 7^2 which equals 49 then you multiply it by 3.14 which would give you 153.86

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