The base of a solid is bounded by y=x^3, y=0, and x=1. Find the volume of the solid for each of the following cross sections perpendicular to the y-axis.

a)semicircles

b)Squares

-MY STEPS

a)

V=.4712319

(Did I do this right?)

b)

V=.600000

(did I do this right?)

I don't think I did these right. Can someone help me out. Thanks.