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anonymous
 3 years ago
If an object is dropped from a height of 144 feet, the function h(t)=16t2t+144 gives the height of the object after t seconds. When will the object hit the ground?
A. 9 s
B. 6 s
C. 1.5 s
D. 3 s
anonymous
 3 years ago
If an object is dropped from a height of 144 feet, the function h(t)=16t2t+144 gives the height of the object after t seconds. When will the object hit the ground? A. 9 s B. 6 s C. 1.5 s D. 3 s

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0what it the position fundtion what is 162t2 ? do you mean \[16t ^{2}+t\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0ok set it equal to zero and solve for t.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.016t^2+144=0 16t^2=144 t^2=9 ...

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0so t=+ 3 but 3 doesn't make sense so t=3s is good answer

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0d because t^2=9 and t=3
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