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anonymous
 one year ago
A small rock falling from the top of a 124fttall building with an initial downward velocity of –30 ft/sec is modeled by the equation h(t) = –16t2 – 30t + 124, where t is the time in seconds. For which interval of time does the rock remain in the air?
t = 2
t > –2
t < 2
t > 2
anonymous
 one year ago
A small rock falling from the top of a 124fttall building with an initial downward velocity of –30 ft/sec is modeled by the equation h(t) = –16t2 – 30t + 124, where t is the time in seconds. For which interval of time does the rock remain in the air? t = 2 t > –2 t < 2 t > 2

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0plug in 0 what do you get

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you are correct I believe.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0When you plug in t=2, you get 0, when it hits the ground, it remains in the air for 2 seconds
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