The equation is h=-16t²+40t+5.The ball will hit the ground when h=0. So:
0=-16t²+40t+5
16t²-40t-5=0
Using the quadratic formula, we get a positive value for t of <span>2.61930639376 seconds.
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Answer:
true
Step-by-step explanation:
It is a lot to explain I'm only a beginner :p
91 samples were least the populations
The last step in a proof contains the conclusion