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Help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-example-1
User Lorin Rivers
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1 Answer

20 votes
20 votes

Answer:

2.5

Explanation:


h(t)=213 \\ \\ \implies -16t^2 +126t=213 \\ \\ 16t^2-126t+213=0 \\ \\ t=(-(-126) \pm √((-126)^2-4(16)(213)))/(2(16)) \\ \\ t \approx 2.46, 5.42

If we consider the graph, since height can't be negative, we only consider the first root.

User Aelsheikh
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