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Christy M.

asked • 06/25/18

When will the softball hit the ground?

The height of a softball is given by f(t)=−16t^2+83t+5.2 where f(t) represents the height of the softball in feet, and t is the number of seconds that has elapsed. Round all values to three decimal places.
1.When will the softball hit the ground? ____seconds
2.When will the softball be 20 feet above the ground? Write your answers as a list, with your answers separated by (a) comma(s). ____seconds

3 Answers By Expert Tutors

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Naomi S. answered • 06/25/18

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New to Wyzant

10+ years of experience and very patient with students

Bobosharif S.

tutor
Naomi, you say
2. When will the softball be 20 feet above the ground?
−16t^2+83t+5.2 = 60.
Q: Why 60?
 
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06/25/18

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