3. The fnst quadrant region hounded by the graph of y = 3x x2 and the xaaxis is revolved about the yaaxis. Find the volume of the resulting solid. For full credit you must show a sketch of the region, a typical slice, the volume av of your typical slice, and the integral that you are using to fmd the volume. 4. The region in the rst quadrant hounded by the graph of y = l and the x-axis for [5 x5 5 is revolved about I the x-axis. Find the volume of the resulting solid. For full credit you must show a sketch of the region, a typical slice, the volume ul' of your typical slice, and the integral that you are using to nd the volume