Clarifying an answer for a related rates problem

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Violagirl

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Mar 9, 2008
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Hi, so I just wanted to double check my answer on a problem. For the following:


A storm at sea has damaged an oil rig. Oil spills from the rupture at the constant rate of 60 ft3/min, forming a slick that is circular in shape and 3 inches thick. How fast is the radius of the slick increasing when the radius is 70 ft?

I got an answer of .022. Is that correct? :?
 
Violagirl said:
Hi, so I just wanted to double check my answer on a problem. For the following:


A storm at sea has damaged an oil rig. Oil spills from the rupture at the constant rate of 60 ft3/min, forming a slick that is circular in shape and 3 inches thick. How fast is the radius of the slick increasing when the radius is 70 ft?

I got an answer of .022. Is that correct? :?
Click to expand...

No it is not.....

Please show your work including the assumptions you had made.
 
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