(3) Let F = (x - y, x,xy). Evaluate, to the nearest hundredth, the surface integral of 7x F over the sphere of radius 1 centered at the origin in xyz-space, oriented out- wards. (4) Determine, to the nearest tenth, the upward flux of F = (-y,,z2) on the surface in xy-space where = = : = 2/4 - 22-v2