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soty2013
 2 years ago
The volume of a cube is increasing at a rate of 9 cubic centimetres per
second. How fast is the surface area increasing when the length of an edge is 10
centimetres ?
soty2013
 2 years ago
The volume of a cube is increasing at a rate of 9 cubic centimetres per second. How fast is the surface area increasing when the length of an edge is 10 centimetres ?

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Yahoo!
 2 years ago
Best ResponseYou've already chosen the best response.1V (cube) = a^3 d v / dt = 3 a^2 d a/ dt

Yahoo!
 2 years ago
Best ResponseYou've already chosen the best response.19 = 3 a^2 d a /dt 3/ a^2 = d a/ dt S = 6 a^2 d s/ dt = 6 * 2 a da / dt

Yahoo!
 2 years ago
Best ResponseYou've already chosen the best response.1a = 10.... just sunstistute and find the answer
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