A model rocket is launched with an initial upward velocity of
164
/
ft
s
. The rocket's height
h
(in feet) after
t
seconds is given by the following.
=
h
−
164
t
16
t
2
Find all values of
t
for which the rocket's height is
92
feet.
Round your answer(s) to the nearest hundredth.
(If there is more than one answer, use the "or" button.)
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1 answer

First let me fix your post:
A model rocket is launched with an initial upward velocity of
164 ft/s. The rocket's height h (in feet) after t seconds is given by the following.
h = −16t^2 + 164t
Find all values of t for which the rocket's height is 92 feet.
so you want:
92 = 16t^2 + 164t
16t^2  164t + 92 = 0
4t^2  41t + 23 = 0
Use the quadratic equation to solve. 👍
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answered by Reiny
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