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anonymous
 one year ago
A ball is thrown from a height of
140
feet with an initial downward velocity of
8/fts
. The ball's height
h
(in feet) after
t
seconds is given by the following.
=h−140−8t16t2
How long after the ball is thrown does it hit the ground?
anonymous
 one year ago
A ball is thrown from a height of 140 feet with an initial downward velocity of 8/fts . The ball's height h (in feet) after t seconds is given by the following. =h−140−8t16t2 How long after the ball is thrown does it hit the ground?

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freckles
 one year ago
Best ResponseYou've already chosen the best response.0for it to hit the ground the height must be zero

freckles
 one year ago
Best ResponseYou've already chosen the best response.0I don't understand your function

freckles
 one year ago
Best ResponseYou've already chosen the best response.0but pretend we have the height is h h(t)=5t^2+t and we want to know when h is 0 replace h(t) with 0 0=5t^2+t and solve for t

freckles
 one year ago
Best ResponseYou've already chosen the best response.0that is correct for the example function I gave

Ac3
 one year ago
Best ResponseYou've already chosen the best response.0can't be 0 doesn't make sense

freckles
 one year ago
Best ResponseYou've already chosen the best response.0but as I said I do not understand what your function is

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its for a class i didnt write it a teacher did

Ac3
 one year ago
Best ResponseYou've already chosen the best response.0write it out using the equation thing

freckles
 one year ago
Best ResponseYou've already chosen the best response.0she really wrote "=h−140−8t16t2 " because this makes no sense

freckles
 one year ago
Best ResponseYou've already chosen the best response.0since we are given the height is 0

freckles
 one year ago
Best ResponseYou've already chosen the best response.0and you are looking for the second 0 not the first 0

Ac3
 one year ago
Best ResponseYou've already chosen the best response.0then solve for t using factoring or quadratic formula

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A ball is thrown from a height of 140 feet with an initial downward velocity of 8/fts . The ball's height h (in feet) after t seconds is given by the following.

freckles
 one year ago
Best ResponseYou've already chosen the best response.0I think your copying and pasting is not working :p

freckles
 one year ago
Best ResponseYou've already chosen the best response.0but anyways you already corrected your function for h so we know it now can you replace h with 0 and solve for t?

freckles
 one year ago
Best ResponseYou've already chosen the best response.0those are approximately right and you should be looking for the second zero that zero being t=2.72 (since this occur later)
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