Did vermon solve for the correct value of x if not explain where he made his error

Can you simplify 4/7? 24 points will be awarded!

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

How do your peer relationships affect your overall health status? what can you do to improve your peer relationships?