SOLUTION: The height of a rock dropped off a 511 foot cliff, h(t), is described by the equation {{{h(t)= -16t^2+511}}}. Find the height of the rock when t=3 seconds.

Algebra ->  Equations -> SOLUTION: The height of a rock dropped off a 511 foot cliff, h(t), is described by the equation {{{h(t)= -16t^2+511}}}. Find the height of the rock when t=3 seconds.       Log On


   

Question 553799: The height of a rock dropped off a 511 foot cliff, h(t), is described by the equation h%28t%29=+-16t%5E2%2B511. Find the height of the rock when t=3 seconds.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
h%28t%29=+-16t%5E2%2B511


h%283%29=+-16%283%29%5E2%2B511


h%283%29=+-16%289%29%2B511


h%283%29=+-144%2B511


h%283%29=+367


So the height is 367 feet.


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