Given h(x) = -3x - 2 solve for x when h(x) = 1

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 =

41/17 as a decimal rounded to the nearest hundredth

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?