Question 1040932
h=-16t^2+64t+8 
After how many seconds is the height 36 ​feet? 
Solve:: -16t^2 + 64t+8 = 36
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-16t^2 + 64t - 26 = 0
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-8t^2 + 32t - 13 = 0
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t = 0.4589 sec
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Cheers,
Stan H.
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