Help on Final Review for School

Question

A Major League Softball hitter who faces a pitcher that throws 65 miles per hour can bat a ball with an exit velocity of 85 miles per hour. The altitude, h(x) , in feet, of the baseball  seconds after being hit can be modeled by the function, h(t)=-16t²+85t+3 

Question 1: After how many seconds will the softball land on the ground? Round your answer to the nearest hundredth.

Question 2: What is the maximum height of the batted softball? Round your answer to the nearest hundredth.

Answer 1

It will take 5.35 seconds to hit the ground

The maximum height is reached when t = 2.66 second @ 115.87 ft