Solve the Problem $h ( t ) = - 4.9 t ^ { 2 } + 61 t + 4$

question 282

Multiple Choice

Solve the problem.
-A fireworks mortar is launched straight upward from a pool deck platform 4 m off the ground at an initial velocity of 61 m/sec. The height of the mortar can be modeled by $h ( t ) = - 4.9 t ^ { 2 } + 61 t + 4$ where h(t) is the height in meters and t is the time in seconds after launch. What is the maximum
Height? Round to the nearest meter.

• A) 237 m
• B) 4 m
• C) 6 m
• D) 194 m

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