If E is the solid described below with density function p(x, y, z) = x + y2, find the following quantities, correct to three decimal places. E is bounded by the cylinder y2 + z = 4 and the planes x = 0, y = 2x, and z = 0 in the first octant (a) the mass m m= (b) the center of mass (x, y, z) = (c) the moment of inertia about the z-axis 4