Adam says he can walk 20 feet to the left, then 20 feet to the right and be back in his original position. is adam correct? why or why not?

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.

Are the corresponding angles congruent? explain why or why not.

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two