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sergij07 [2.7K]
3 years ago
14

)

Mathematics
1 answer:
Leno4ka [110]3 years ago
8 0

Answer:

10 in

Step-by-step explanation:

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Jerald jumped from a bungee tower. If the equation that models his height, in feet, is h = –16t2 + 729, where t is the time in s
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Height (in feet): h=-16t^2+729

For which interval of time is h less than 104 feet above the ground?

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Replacing t^2 by [ Absolute value (t) ]^2:

[ Absolute value (t) ]^2 > 39.0625

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sqrt { [ Absolute value (t) ]^2 } > sqrt (39.0625)

Absolute value (t) > 6.25

t < -6.25 or t > 6.25, but t can not be negative, then the solution is:

t > 6.25



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