maths help:) (1 Viewer)

[mac1996]

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)

 

[GoldyOrNugget]

Find their respective positions at t hours in terms of t, then use Pythagoras.