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douglas12
Group Title
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
 one year ago
 one year ago
douglas12 Group Title
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
 one year ago
 one year ago

This Question is Closed

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

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

Mr.Mosterd Group TitleBest 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.
 one year ago

douglas12 Group TitleBest ResponseYou've already chosen the best response.0
SO is the answer D
 one year ago
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