Height of a Rocket. The function S(t) = -16t2 + 80t + 224 Gives the height S,
Question:
The function
S(t) = -16t2 + 80t + 224
Gives the height S, in feet, of a model rocket launched with a velocity of 80 ft/sec from a hill that is 224 ft high, where t is the time, in seconds.
a) Determine when the rocket reaches the ground.
b) On what interval is the height greater than 320 ft?
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Step by Step Answer:
a We write and solve a polynomial equation 16t 2 80t224 0 16t 2 5t 14 0 16t 2t 7 0 T...View the full answer
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Related Book For 
College Algebra Graphs and Models
ISBN: 978-0321845405
5th edition
Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna
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