hayley12341 hayley12341

26-05-2016
Mathematics

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

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

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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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