Application The height of a flare above the ground is g…
Application The height of a flare above the ground is given by the formula h = -5t2 + 90t + 2, where h is the height in metres and t is the time in seconds. a) What height the flare was fired from? (1) b) Calculate the maximum height the flare reaches, and the time at which it reaches this height by completing the square. (show your work) (5) c) Determine the time (to 2 decimal places) the flare hits the ground. (Show your process) (3)