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Algebra
Question

The path of a ball is modeled by the equation \( h...

The path of a ball is modeled by the equation \( h = - 5 t ^ { 2 } + \) \( 30 t + 40 \) where \( h \) is the height of the ball above the ground in inches and \( t \) is the time in seconds. What is the ball's height at \( 4 \) seconds? A. \( 70 \) in. B. \( 80 \) in. C. \( 85 \) in. D. \( 30 \) in. 

Answer

B

Solution
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