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4. (a) Air is being pumped into a spherical balloon such that its radius increases at a rate 0.75 inc/min. Find the rate
Posted: Sat Feb 26, 2022 10:54 am
by answerhappygod
- 4 A Air Is Being Pumped Into A Spherical Balloon Such That Its Radius Increases At A Rate 0 75 Inc Min Find The Rate 1 (17.91 KiB) Viewed 36 times
4. (a) Air is being pumped into a spherical balloon such that its radius increases at a rate 0.75 inc/min. Find the rate of change of its volume when the radius is 5 inches. [9 marks) (b) The length, x of a rectangle is decreased ate the rate of 4 cm/minute and the width, y is increasing at the rate of 3 cm/minute. When x = 12 cm and y = 8 cm, find the rate of change the area of the rectangle. [6 marks)