Thursday
December 18, 2014

Homework Help: Math

Posted by Tareena-- drwls check my answer please on Saturday, May 24, 2008 at 6:36pm.

Two Planes leave an airport at the same time, one flying 300km/h and the other at 420km/h
The angle between their flight paths is 75 degrees after three hours, how fart apart are they?
answer:
so it would be c^2=a^2+b^2-2ab cos C
900^2+1260^2-2(900)(1260)(cos75)
c^2=33542.9
c=183.14km
is it right?

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