A gallon of water weighs 8.34 pounds. The Sanchez family has a round, 15-foot diameter, above-ground pool. How much weight is added to the pool when it is filled with 5, 305 gallons of water?

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.

Need on this geometry question. explain how you did it.

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9