We need to get the limits first. When y = 0 0 = 64x - 8x^2 x = 0 and x = 8 The volume is V = ∫ y dx from 0 to 8 V = ∫ (64x - 8x^2) dx from 0 to 8 V = 32x^2 - 8x^3/3 from 0 to 8 V = 682.67<span />
It would take her 12 minutes because if you mutipy 2/3 by 3/2 then you get 1 (as in one mile) and then you have to do that to the other side too so then you multiply 8 by 2/3 and get 12
