H=-16t^2+122t+5 where h is height in feet and t is time in seconds. How long will it take the baseball to hit the ground? h=-16t^2+162t+0.2 where h is height in feet and t is time in seconds. How long will it take the golf ball to hit the ground?

Step-by-step explanation:

Solving (a):

Required: Time to hit the ground

This means that H = 0

So, we have:

Rewrite as:

Solve for t using:

Split:

or

or

or

Time can not be negative. so:

Solving (b):

Required: Time to hit the ground

This means that h = 0

Rewrite as:

Solve for t using:

or

or

Time can not be negative. So:

450 is the final answer! : )