A ball is thrown from an initial height of 2 meters with an initial upward velocity of 11/ms. The ball's height h (in meters) after t seconds is given by the following. =h+2−11t5t2
Find all values of t for which the ball's height is 7 meters.

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