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douglas12
 one year 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
douglas12
 one year 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

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

douglas12
 one year ago
Best ResponseYou've already chosen the best response.0So how do you solve it then?

Mr.Mosterd
 one year ago
Best ResponseYou've already chosen the best response.1As 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.
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