Question

1. The height of a pop fly ball over the time after the ball is hit is modeled by the

Answer 1

Answer:

5.12 seconds to the nearest hundredth.

Step-by-step explanation:

When the ball hits the ground h = 0 so

-16t^2 + 81t + 5 = 0

t =  [ -81 +/- sqrt ((81^2 - 4 * -16 * 5)]/ (2*-16)

=  (-81 +/- sqrt 6881) / -32

= 5.12 , -0.6

So the answer is 5.123 seconds.

Answer 2

Answer:

5.123 seconds

Step-by-step explanation:

F(x) = ax2 + bx + c

For further explanation comment

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