The radius of a circle is increasing at a rate of 5 ft/min. At what rate is its area changing when the radius is 2 ft? (Recall that for a circle, A = nr².) ft?/min

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Chapter65: Achievement Review—section Six
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The radius of a circle is increasing at a rate of 5 ft/min. At what rate is its area changing when the radius is 2 ft? (Recall that for a circle, A = nr.)
ft2/min
Transcribed Image Text:The radius of a circle is increasing at a rate of 5 ft/min. At what rate is its area changing when the radius is 2 ft? (Recall that for a circle, A = nr.) ft2/min
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