B. Solving real life situation using quadratic function.
A ball is thrown upward from the top of a 40 foot-high building at a speed of 80
feet per second. The ball’s height above ground can be modeled by the
equation H(t)=−16t2+80t+40.H(t)=−16t2+80t+40.
a. When does the ball reach the maximum height?
b. What is the maximum height of the ball?
c. When does the ball hit the ground?
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Answer:
a.40 foot-high
b.40
c.when ball height above ground.
correct me if im wrong po..