(874, #41) Set up, but do not evaluate, integral expressions for
a) the mass, b) the center of mass, and c) the moment of inertia about
the z-axis for the solid in the first octant bounded by
the paraboloid 
and the plane 
.
Solution:
a) mass
b) center of mass 
,
where
c) the moment of inertia
by: gm