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Help? Please. Thanks???

Help? Please. Thanks???-example-1

1 Answer

5 votes

The height is represented by d.

d = 10 feet


10 = - 16 {t}^(2) - 7t + 61 \\ 0 = - 16 {t}^(2) - 7t + 51

Use quadratic formula:

t = 1.58, -2.02 (reject)

1.58 seconds

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