The towrope pulling a parasailor is 70m long. A boat crew member estimates that the angle between the towrope and the water is about 30o

. Find the height of the parasailor above the water.

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe