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Aleks04 [339]
3 years ago
7

After how many seconds is the height 68 feet? When the equation is h=-16t2+64t+8

Mathematics
1 answer:
Rudiy273 years ago
5 0
<span>68=-16t2+64t+8
16t2-64t+60=0

4t2-16t+15=0
(2t-5)(2t-3)=0
t=5/2 or 3/2
The object is at 68 feet after 3/2 secs, and returns to 68 feet after another second..</span>
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01  Opening stock bought on Feb 28  10   100

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31 Closing Stock               10   200

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The quantity on hand at the end of the month is 10 units.  

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