Kenneth S. answered • 04/03/18

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Calculus will seem easy if you have the right tutor!

From the wording of the problem, it does not appear that the side of length 8 cm is changing!

Therefore A = 8x

dA/dt = 8 dy/dt and the given dy/dt is 2.

Therefore the desired dA/dt simply equals 16 cm/sec.

I suspect that your problem is not necessarily written exactly as it should have been!

Daisy C.

04/03/18