SOLUTION: After t hours on a particular day, a freight train is s(t)=−17.98t+16.732t^2-0.78t^3 miles due east of its starting point (for 0≤t≤18).
a) Where is the train (bo
Algebra.Com
Question 970764: After t hours on a particular day, a freight train is s(t)=−17.98t+16.732t^2-0.78t^3 miles due east of its starting point (for 0≤t≤18).
a) Where is the train (both distance and direction from starting point) after 9 hours?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
After t hours on a particular day, a freight train is
s(t)= -17.98t + 16.732t^2 - 0.78t^3 miles due east of its starting point (for 0≤t≤18).
a) Where is the train (both distance and direction from starting point) after 9 hours?
------------------
s(t)= -17.98t + 16.732t^2 - 0.78t^3
Sub 9 for t
---
s(9)= -17.98*9 + 16.732*9^2 - 0.78*9^3
Just arithmetic.
RELATED QUESTIONS
A freight train leaves Kansas and travels due west. A passenger train departs at exactly (answered by Paul,venugopalramana)
HEIGHT OF A BULLET: HEIGHT OF A BULLET SHOT INTO THE AIR IS GIVEN BY s(t)= -4.9t^2+... (answered by richwmiller)
A train leaves a station, moving along a straight line. During the next 3 hours, its... (answered by Alan3354)
A car is traveling due east. Its velocity (in miles per hour) at time t hours is given by
(answered by fractalier)
A particle moves in a straight line so that its distance, s m, from a fixed point A on... (answered by Fombitz)
The number of bacteria in a refrigerated food product is given by
N(T)=22T2-98T+54,... (answered by ikleyn)
a passenger train leaves a train depot 2 hours after a freight train leaves the same... (answered by josmiceli)
A passenger train leaves a train depot 2 hours after a freight train leaves the same... (answered by mananth)
A passenger train leaves a train depot 2 hours after a freight train leaves the same... (answered by VFBundy)