Find the probability that a randomly selected adult is is chosen who is obese and suffers from diabetes if 3% of adults suffer from diabetes and 31% of adults are obese and 1% are obese and suffer from diabetes

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.

In the diagram of circle a what is m

Can someone me out here number 4 plz