2. A rocket carrying fireworks is launched from a hill 80 feet above a lake. The rocket will fall into lake after exploding at its maximum height. The rocket's height above the surface of the lake is given by h = -16t² +64t + 80. a. b. C. What is the height of the rocket after 1.5 second? What is the maximum height reached by the rocket? How long will it take for the rocket to hit 128 feet the first time?

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter10: Quadratic Equations
Section10.4: Solve Applications Modeled By Quadratic Equations
Problem 160E: A city planner wants to build a bridge across a lake in a park. To find the length of the bridge, he...
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2.
A rocket carrying fireworks is launched from a hill 80 feet above a lake. The rocket will fall into lake
after exploding at its maximum height. The rocket's height above the surface of the lake is given by
h = -16t² +64t + 80.
a.
b.
C.
d.
What is the height of the rocket after 1.5 second?
What is the maximum height reached by the rocket?
How long will it take for the rocket to hit 128 feet the first time?
brie (01)
After how many seconds after it is launched will the rocket hit the lake?
(08)
Transcribed Image Text:2. A rocket carrying fireworks is launched from a hill 80 feet above a lake. The rocket will fall into lake after exploding at its maximum height. The rocket's height above the surface of the lake is given by h = -16t² +64t + 80. a. b. C. d. What is the height of the rocket after 1.5 second? What is the maximum height reached by the rocket? How long will it take for the rocket to hit 128 feet the first time? brie (01) After how many seconds after it is launched will the rocket hit the lake? (08)
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