An electrician can wire a house in 20h. If she works with an apprentice, the same job can be completed in 12h. How long would it take the apprentice, working alone, to wire the house?

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