You would use the tangent first, because the opposite of 40 would be x and the adjacent would be 30ft
Answer:
The 9 people can be selected one way
Step-by-step explanation:
Let x = first plane's speed.
We have the equation:
2 hours * x km/h + 1.5 hours * (x+60) km/h = 3135 km.
3.5 hours*x km/h + 90 km = 3135km
3.5hours*x km/h = 3045km
x = 870 km/h.
The first plane is traveling at 870 km/h, therefore since it is 60 km/h faster, the second plane is traveling at 930 km/h.
Answer:
B
Step-by-step explanation:
it's B because it says -0.9<u>05</u>