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18mi
h
A bicyclist is riding at a speed of- when she
starts down a long hill. The distance d she travels
in feet can be modeled by d(t) = 4t² + 18t, where
t is the time in seconds. How long will it take her
to reach the bottom of a 252 foot - long hill?

18mi h A bicyclist is riding at a speed of when she starts down a long hill The distance d she travels in feet can be modeled by dt 4t 18t where t is the time i class=

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