Hello everyone,

I need some help with a simple iterated integration. I just can't seem to figure out where I am going wrong. According to an online homework site, my answer is not correct.

I am getting a crazy answer of -179975.2.

Below is the question and I have attached an image of my work. Any help would be GREATLY appreciated, as this assignment is due soon.

Question:

(1 pt) LetDbe the region in thex,y-plane enclosed by the curves and . Find the volume of the solid with baseDthat lies under the surface .

Answer (my work, please click on the image link):