Fireworks are launched over a river off a bridge 25 feet above water with the initial velocity of 56 feet per second. The height of the firework, t seconds after the launch is given by h = -16t2 + 56t + 25. After how long will the shell from the firework reach the river?
Fireworks are launched over a river off a bridge 25 feet above water with the initial velocity of 56 feet per second. The height of the firework, t seconds after the launch is given by h = -16t2 + 56t + 25. After how long will the shell from the firework reach the river?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section: Chapter Questions
Problem 6T
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- Fireworks are launched over a river off a bridge 25 feet above water with the initial
velocity of 56 feet per second. The height of the firework, t seconds after the launch is
given by
h = -16t2 + 56t + 25.
After how long will the shell from the firework reach the river?
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