Please solve

Give an equation representing the volume of the slice you would use in a Riemann sum representing the volume of the region. Then write a definite integral representing the volume of the region and evaluate it exactly. (The region is a hemisphere.) Ay 2 mm K- 4 mm Volume of disk ~ mm 3 Total volume over all disks is dy mm3 NOTE: Enter the exact answer or round to three decimal places. Volume of hemisphere = mm