The function defined by y=√√²-x² has as its graph a semicircle of radius r with center at (0,0) (as shown in the figure to the right). Find the volume that results when the semicircle y =√√81-x² is rotated about the x-axis. C Set up the integral that is equal to the volume described. V-104 V= dx -9 (-1,0) (r,0) _y=√√₁²2²_ (r,0) Q

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