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Algebra
Question

A model rocket's height above the water, \( h \) ,...

A model rocket's height above the water, \( h \) , in feet, \( t \) seconds after it is launched. 

The height is given by: \( - 16 t ^ { 2 } + 128 t + 144 \) 

How long will it take the rocket to hit the ground?

A. It will take \( 5 \) seconds for the rocket to hit the water. 

B. It will take \( 9 \) seconds for the rocket to hit the water. 

C. It will take \( 11 \) seconds for the rocket to hit the water. 

D. It will take \( 7 \) seconds for the rocket to hit the water. 

Answer

B

Solution
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