Joel is 700 km north of a town, travelling towards it at an average speed of 75 km/h. Nick is 680 km east of the town, travelling towards it at 80 km/h. Show that after t hours, the distance between Joel and Nick is given by, d= √(952400-213800t +12025t^2)
-
Finished your HSC? Check out our University Discussion, Non-School forums or help out next year's HSC students! -
YOU can help the next generation of students in the community! Share your trial papers and notes on our Notes & Resources page
maths help:) (1 Viewer)
- Thread starter mac1996
- Start date
GoldyOrNugget
Señor Member
- Joined
- Jul 14, 2012
- Messages
- 583
- Gender
- Male
- HSC
- 2012
Find their respective positions at t hours in terms of t, then use Pythagoras.