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Algebra
Pregunta

A fireworks mortar is launched straight upward fro...

A fireworks mortar is launched straight upward from a platform at an initial velocity of \( 80 \) feet per second. The height of the mortar can be modeled by, \( h ( t ) = - 16 t ^ { 2 } + \) \( 80 t + 9 , \) where \( h ( t ) \) is the height in feet, and \( t \) is the time in seconds. What is the maximum height? 

Answer

169 feet

Solución
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