Answer:
1.6 hours
Step-by-step explanation:
The 2 trains together are going 160 mph.
256 / 160 = 1.6 hours
The answer would be 1.25.
Ignore above
your equation is 2(cosx)^2-3cosx+1=0
use quadratic formula to get results
you will end up with
cosx=1 or cosx=1/2
so, x=0 or x=pi/3
You would have to do 1/3x2/5 which is 2/15. So 2/15 of the girls in the school play sports.
Answer:
7/15
Step-by-step explanation:
2/15 + 5/15 = 7/15
Hoped this helped.