Charlize wants to measure the depth of an empty well. She drops a ball from a height of 3 feet into the well
and measures how long it takes the ball to hit the bottom of the well. She uses a stopwatch, starting when
she lets go of the ball and ending when she hears the ball hit the bottom of the well. The polynomial
-16€* + 3 gives the height of the ball after t seconds. Her stopwatch measured a time of 3.1 seconds. How
deep is the well?