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Mathematics
OpenStudy (anonymous):

find the time,t, in seconds that it takes an object dropped from a height of 900 feet to reach the ground. use the function h= -16t^2+900

OpenStudy (mertsj):

Same thing.

OpenStudy (anonymous):

whts the answer?

OpenStudy (mertsj):

\[-16t^2=-900\] \[t^2=56.25\] \[t=7.5\]

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