16) A restaurant supplier services the restaurants in a circular area in such a way that the area of the circle is increasing at the rate of 20 km² per year. How quickly is the radius r is increasing when the area is 36 km²?

Advanced Engineering Mathematics
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ISBN:9780470458365
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16) A restaurant supplier services the restaurants in a circular area in such a way that the area of the circle is
increasing at the rate of 20 km² per year. How quickly is the radius r is increasing when the area is 36 km²?
Transcribed Image Text:16) A restaurant supplier services the restaurants in a circular area in such a way that the area of the circle is increasing at the rate of 20 km² per year. How quickly is the radius r is increasing when the area is 36 km²?
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