Martin drew a triangle. Its sides were 3

cm

3 cm3, start text, space, c, m, end text,

4

cm

4 cm4, start text, space, c, m, end text, and

5

cm

5 cm5, start text, space, c, m, end text.

It has one right angle and two acute angles.

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 =