What is the absolute value of –8? Use the number line to help answer the question. A number line going from negative 8 to positive 8. A point is at negative 8.
–16
–8
8
16

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =