maths
posted by bushra .
a hiker walk due east at 4km per hour and a second hiker starting from the same point walks 55 degree northeast at the rate of 6km per hour. H
ow far apart will they be after 2 hours

the hiker walking east walked 8 km
the hiker walking 55° NE walked 12 km
Since I am not sure what notation of direction you are using,
e.g. is it N55°E OR simply 55° up from the positive xaxis direction OR
I will interpret that the angle between their paths is 55°
So by the cosine law
x^2 = 8^2 + 12^2  2(8)(12)cos55°
= 97.87332..
x = √97.87....
=appr 9.89 km
If your angle is different from my interpretation, just make the changes at the end of the equation. 
i m having a problem that the angle between north east will be 35 or 55 because if we are considering north east the hiker is moving fom north to east
Respond to this Question
Similar Questions

math
Edna and Nancy leave the house of a common friend at the same time and walk for 4 hours. Edna walks due east at the average rate of 4 kilometers per hour and Nancy walks due north at the average rate of 3 kilometers per hour. What … 
Physics
a hiker walks 14.7 km at an angle 35 degrees south of east. Find the east and north components of this walk. 
Physics
a hiker walks 14.7 km at an angle 35 degrees south of east. Find the east and north components of this walk. 
Physics: Vectors
A hiker walks 10.0 km[NE], 5.0 km[W], and then 2.0 km[S] in 2.5 h. (a) What is the hiker's displacement? 
Science (Physics)
1.A hiker started to walk from her campsite heading east with a velocity of 5 m\s after 6 seconds, she attained a velocity of 7 m\s. What is the average velocity of the hiker? 
calculas maths
.Two hikers begin at the same location and walk in perpendicular directions. Hiker A travels due north at a rate of 3 miles per hour; Hiker B travels due east at a rate of 5 miles per hour. At what rate is the distance between the … 
maths
a hiker walk due east at 4km per hour and a second hiker starting from the same point walks 55 degree northeast at the rate of 6km per hour. H ow far apart will they be after 2 hours. this is my ques but .i am having problem that … 
Calculus AB
A hiker walks due east for 40 minutes, then changes course by going South 25 degrees West. After 20 minutes, he changes course again, this time at South 75 degrees East. He goes through this path for one hour after which he heads north … 
Math College 115
A hiker can walk 2 miles in 43 minutes. What is his average speed in miles per hour? 
Trigonometry
Two hikers are wandering through heavy woods with walkie talkies. The walkie talkies have a range of 0.0568182 miles. From their starting point, they head off at an angle of 109.167° of each other. Hiker 1 walks 0.24 miles per hour, …