9. jack cut a piece of wood that was 8 feet long into two pieces. one piece is three times as long as the other. how long is the shorter piece of wood?
a. 4 feet long
b. 3 feet long
c. 1 foot long
d. 2 feet long

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the given curves about y = 8.8y = x3, y = 0, x = 4