A ball is released at a height of 27 inches to roll inside a half-cylinder. It rolls to a height of 9 inches on the other side of the cylinder on roll 1. Each time it
rolls up a side of the cylinder, the ball reaches a point th
high as it
had reached on the other side.
This explicit formula models the height of the ball, in inches, the nth time it
rolls up a side of the cylinder.
How high does the ball roll on its 4th time up the cylinder's side?What sport was invented as a way to keep athletes in shape during the winter months?