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Mathematics 12 Online
OpenStudy (chris215):

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OpenStudy (chris215):

i got 10π ft2/ft

OpenStudy (solomonzelman):

ft2/ft ?

OpenStudy (anonymous):

i think so

OpenStudy (chris215):

ft^2/fy

OpenStudy (chris215):

ft^2/ft **

OpenStudy (anonymous):

yes

OpenStudy (solomonzelman):

So, they are asking for A'(5) (that's my interpretation of thw question). A(r)=\(\pi\)r\(^2\) A'(r)=2\(\pi\)r A'(5)=2\(\pi\)•5=10\(\pi\) then yes, you are correct

OpenStudy (anonymous):

what happened to the puddle though :(

OpenStudy (mathstudent55):

Great job, @chris215 |dw:1449686040515:dw|

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