H(t)=-16t^2+48t where t equals the time in seconds and h(t) represents the height of the ball at time t seconds

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.

What is the reflection image of (5,-3) across the line y = -x?

The measure of an angle is 117°. what is the measure of a supplementary angle?