Posted by **Steph** on Monday, December 2, 2013 at 3:01am.

h=-16t2+80t+96

Use this position polynomial to calculate the following:

1.The height of the object after 2 seconds

2.The height of the object after 4 seconds

3.How long the object will take to reach the ground?

4.Write the position function for an object that is thrown upward from a 180 ft. building with an initial velocity of 20 ft/sec.

1. 192

2. 150

I am not sure how to do numbers 3 and 4 and I am not sure If I did 1 and 2 right?

Thanks in advance!

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