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

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

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.

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.~ Whenx=8cm and y=6, find the rates of change of (i) the perimeter (ii) the area of the rectangle.

The length x of a rectangle is decreasing at the rate of 3 cm/minute and the width y is increasing at the rate of 2cm/minute. When x" "=10 cm and y" "=" "6 cm, find the rates of change of (a) the perimeter and (b) the area of the rectangle.

The length of a rectangle is decreasing at the rate of 2 cm/sec and the width is increasing at the rate of 2 cm/sec. When x=10 cm and y=6 cm , find the rate of change of (i) the perimeter (ii) the area of the rectangle.

The length of a rectangle is decreasing at the rate of 5 cm/minute and the width is increasing at the rate of 4cm/minute. When lenght is 3 cm and width is 2 cm , find the rates of change of the perimeter and the area of the rectangle.

The length of x of a rectangle is decreasing at the rate of 3cms^(-1) and the widty y is increasing at the rate of 3cms^(-1) when x=10cm and y=6cm then the rate of change of the area of rectangle is

The length x of a rectangle is increasing at the rate of 3 cm/sec. and the width y is increasing at the rate of 2 cm/sec. If x=10 cm and y=6 cm, then the rate of change of its area is