A right circular cone is inscribed in a hemisphere. The figure is expanding in such a way that the combinded surface area of the hemisphere and its base is increasing at a constant rate of 18 in^2 per second. At what rate is the volume of the cone changing when the radius of the common base is 4 in?(adsbygoogle = window.adsbygoogle || []).push({});

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# A right circular cone is inscribed in a hemisphere.

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