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Mathematics 18 Online
OpenStudy (anonymous):

after leaving an airport a plane flies for 1.5 hours at a speed of 200 km/h on a course of 200 degrees. Then, on a course of 340 degrees, the plane flies for 2 hrs at a speed of 250 km/h. At this time how far from the airport is the plane?

hero (hero):

Looks like you have to apply the pythagorean theorem twice

OpenStudy (anonymous):

Why can't you be sure of anything ?

OpenStudy (anonymous):

if you were to draw it out, what would be the hypotenuse in this case?

hero (hero):

Well, there's a couple of different ways of going about this

OpenStudy (anonymous):

Well thsi is trig so I know you have to use either the law of cosines or sines.. but which one?

OpenStudy (anonymous):

*this

hero (hero):

Well, let me see if I can set this up

OpenStudy (anonymous):

whats a course, how is the angles set up ?

OpenStudy (anonymous):

north is 0 degrees?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

question is incomplete unless you state the reference ..

OpenStudy (anonymous):

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