Question: A rectangle is bounded by the x-axis and the semicircle y = v 81 -x2 (see figure). What length and width should the rectangle have

A rectangle is bounded by the x-axis and the semicircle y = v 81 -x2 (see figure). What length and width should the rectangle have so that its area is a maximum? (Enter your answers as a comma-separated list. ) 10 5 ( x, y) X -10 -5 5 10 -51

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