Evaluate tripleintegral_E Squareroot x^2 + y^2 dv, where E is the region that lies inside the cylinder x^2 + y^2 = 4 and between the planes z = -3 and z = 4. Evaluate tripleintegral_E (x^2 + y^2) dv, where E lies between the spheres, x^2 + y^2 + z^2 = 4 and x^2 + y^2 + z^2 = 9. Calculate the volume of the Triple integral: tripleintegral_E x dv where E bounded by the plane, y = 0, z = 0, x - y = 3 and the cylinder x^2 + z^2 = 1 in the first octant. Find the volume of the Triple integral: tripleintegral_H z Squareroot x^2 + y^2 + z^2 dv, where H is the solid hemisphere that lies above the xy-plane and has center at the origin with radius 2.