First one:
c²=a²+b²
4²=3²+b²
16-9=b²
b=2.65
Tan= opp/adj
tan=3/4
=o.75*tan-1
=37 degrees
answer is suppose to be 41
Second one:
x components:12.29+(-3.17)=9.12
y components=8.60+6.79=15.39
83.1744+236.8521=c²
320.0265=c²
c=18
answer is suppose to be 2.0*10¹ km(N 16 degrees...
A canoeist wants to travel straight across a river that is 0.10 km wide. However, there is a strong current moving downstream with a velocity of 3.0km/h. The canoeist can maintain a velocity realitive to the water of 4.0km/h.
a) In what diretion should the canoeist head to arrive at a position...