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If a baseball is dropped from a helicopter 625 feet above ground, then its distance in feet form the ground t seconds later is modeled by 16t^2+625. How long after the ball is dropped will it hit the ground?
A. 1.56 seconds
B. 6.25 seconds
C. 9 seconds
D. 39.06 seconds
 9 months ago
 9 months ago
If a baseball is dropped from a helicopter 625 feet above ground, then its distance in feet form the ground t seconds later is modeled by 16t^2+625. How long after the ball is dropped will it hit the ground? A. 1.56 seconds B. 6.25 seconds C. 9 seconds D. 39.06 seconds
 9 months ago
 9 months ago

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Mr.MosterdBest ResponseYou've already chosen the best response.1
They are really asking \[16t^{2}+625=0\].
 9 months ago

douglas12Best ResponseYou've already chosen the best response.0
So how do you solve it then?
 9 months ago

Mr.MosterdBest ResponseYou've already chosen the best response.1
As you would any other quadratic equation. You'll get two solutions. A negative and a positive. You'll take the positive solution because time is positive.
 9 months ago
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