5) The height in feet of a firework t seconds after it is launched from a 6 foot-high platform is given by h(t) = -16t² + 60t + 6. For the firework to explode above the safe height of 60 feet, during what time interval must it explode? Write your answer in the answer box in interval notation, rounded the nearest tenth.

5) The height in feet of a firework t seconds after it is launched from a 6 foot-high platform is given by h(t) = -16t² + 60t + 6. For the firework to explode above the safe height of 60 feet, during what time interval must it explode? Write your answer in the answer box in interval notation, rounded the nearest tenth.

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 159E: A bullet is fired straight up from a BB gun with initial velocity 1120 feet per second at an initial...

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