A ball is dropped from a window at a height of 36 feet. The function h(x) = -16x2 + 36 represents the height (in feet) of the ball after x seconds. Round to the nearest tenth.
How long does it take for the ball to hit the ground?

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.