If the volume of a hemisphere is increasing at a steady rate of 18Ï€ m
MATHEMATICS
JAMB 2000
If the volume of a hemisphere is increasing at a steady rate of 18π m3 s−1, at what rate is its radius changing when its is 6m?
- A. 2.50m/s
- B. 2.00 m/s
- C. 0.25 m/s
- D. 0.20 m/s
Correct Answer: C. 0.25 m/s
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