Help!! Will mark brainliest NASA launches a rocket at t=0 seconds. It’s height, in meters above sea-level, as a function of time is given by h=-4.9t^2+313t+325

(a) assuming that the rocket will splash down into the ocean, at what time does splashdown occur? (Round answer to 2 decimal places)

The rocket splashes down after seconds

(b) how high above sea-level after seconds

The rocket peaks at .. meters above sea-level