Which reading-comprehension strategies are used before reading? Select two options. pacing
scanning
clarifying
questioning
summarizing

When turned about its axis of rotation, which shape could have created this three-dimensional object?

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.

When you answer this can you explain