Jenny's frog made one jump of 2.34 meters. christina's frog made jumps of 1.22 meters and 0.89 meters. how much further did jenny's frog jump in one jump than christina's frog in two jumps combined?

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 =