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The length x of a rectangle is decrea...

The length `x` of a rectangle is decreasing at the rate of 5 cm/minute and the width `y` is increasing at the rate of 4 cm/minute. When `x=8` cm and `y=6` , find the rate of change of (a) the perimeter, (b) the area of the rectangle.

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The length x of a rectangle is decreasing at the rate of 5cm/minute and the width y is increasing at the rate of 4cm/minute. When x=8cm and y=6, find the rate of change of (a) the perimeter,(b) the area of the rectangle.

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The length x of a rectangle is decreasing at the rate of 5 cm/minute and the width y is increasing at the rate of 4 cm/minute. When x = 8cm and y = 6cm, find the rates of change of (a) the perimeter, and (b) the area of the rectangle.

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