4.Suppose that region R is bounded by the parabola y=x^2 and x=y^2 and has a constant density (sigma). Compute its center of mass in terms of (sigma).

5.Using spherical coordinates, compute the volume of an ice cream cone which lies above the cone (phi) = (pi)/4 and below the sphere rho = cos (phi)

The bracket terms are symbols

I have working for
Q4. Someone correct me if im wrong

dropboxcom/s/r60ayol1d2gqql3/Photo%203-27-17%2C%2021%2052%2043.jpg?dl=0

dropboxcom/s/hzetsl6zgo0kdyl/Photo%203-27-17%2C%2021%2052%2054.jpg?dl=0