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Mathematics 18 Online
OpenStudy (anonymous):

Please help! Pre cal. Parabolas. I will medal & fan

OpenStudy (anonymous):

8.9 4 2.4 or 1.8 seconds?

OpenStudy (anonymous):

@satellite73

OpenStudy (anonymous):

set it equal to zero (the height when it hits the ground is zero) and solve for \(t\)

OpenStudy (anonymous):

\[ -16^2 + 96=0\\ 16t^2=96\\ t^2=6\\ t=\sqrt6\]

OpenStudy (anonymous):

the \(6\) because \(96\div 16=6\) use a calculator to find the decimal

OpenStudy (anonymous):

Okay so 2.4 seconds?

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