Question

Hitting the baseball over the lights

Answer 1

Answer:

Approximately 3.8 seconds

Step-by-step explanation:

H(x)=-16x^2+60x+4

We want to find when the ball hits the ground, or where the zeros are

0 =-16x^2+60x+4

Using the quadratic formula

-b ±sqrt(b^2 -4ac)

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   2a

-60 ±sqrt(60^2 -4*-16*4)

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   2(-16)

-60 ±sqrt(3600+256)

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   -32

-60 ±sqrt(3856)

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-32

We want the positive value for time

-60-62.09669879

---------------------------    

  -32

3.815521837

Approximately 3.8 seconds