A rectangle has width w inches and height h inches, where the width is twice the height. Both ww and h are functions of time t, measured in seconds. If A represents the area of the rectangle, which of the following gives the rate of change of A with respect to t? dA = 4h in/ sec dt 4= 3h曲 in?/ sec C dA = 4h in sec 4h些 in?/ sec dt dt

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