Based on the best-fit quadratic model at what time T will the height of the object be approximately 30 meters? A.) 5.6 seconds B.) 5.5seconds C.)6.0 seconds D.)5.4 seconds *sn the picture is there when you click on the problem. please help thanks :)36 minutes ago

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Based on the best-fit quadratic model at what time T will the height of the object be approximately 30 meters? A.) 5.6 seconds B.) 5.5seconds C.)6.0 seconds D.)5.4 seconds *sn the picture is there when you click on the problem. please help thanks :)36 minutes ago

Mathematics
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height = at^2+bt+c. substitute any three values of height and t to find a,b,c. and then use those values to find out t for height = 30 meters
so would it be C

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wait, this is best fitting. hmmm. I think you have to follow a different procedure for this.
so what would it be?
have you done derivatives?
no idk how sorry
Have you done curve fitting?
no
no
If you havent, then the best thing would be to use the method I described. use t = 0 , 2 ,4
okay so its B
are you getting different values of a,b,c if you are choosing different heights and t?
i really dont understand
http://www.youtube.com/watch?v=z_hEVWSkQHo see that video. It explains it well. You can do the problem just like he explains it.
okay my friend just told me it was A?
and thanks for the video:)
you are welcome.
but is it A?
I don't know. you have to use your calculator.
see the video for more information;
okay

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