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Mathematics 17 Online
OpenStudy (anonymous):

PLZ HELP NEED ANSWERS FAST!!!

OpenStudy (anonymous):

For problems 1-4, solve each triangle using either the Law of Sines or the Law of Cosines. If no triangle exists, write “no solution.” Round your answers to the nearest tenth. a = 12, b = 14, c = 21 A = 51°, b = 41, c = 40 A = 23°, B = 55°, b = 9 A = 18°, a = 25, b = 18 Jane is taking a ride around the lake. The route is shown below: Triangular diagram of Jane's ride What is the distance from the Beach to the Waterfront Restaurant?

OpenStudy (anonymous):

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OpenStudy (agent0smith):

Are there no angles given in the diagram? There's no way to find x just given the length of 2 sides. x will be less than (5.2+2.4) and greater than (5.2-2.4) miles.

OpenStudy (anonymous):

answer 5=5.7 Miles x=5.7 Miles i just need the solutions to the first four

OpenStudy (agent0smith):

For number 1, use the cosine rule to first find an angle and go from there. 2, cosine rule again, to find side length a and go from there. 3, use the sine rule to find side length a, and so on. 4, use the sine rule to find angle B and so on.

OpenStudy (agent0smith):

Oh and for the ones where you're given two angles, you can find the third angle since A+B+C = 180

OpenStudy (anonymous):

I dont know how to do the rules and for what angles and what not.....

OpenStudy (agent0smith):

http://www.mathsisfun.com/algebra/trig-sine-law.html http://www.mathsisfun.com/algebra/trig-cosine-law.html these both show pictures to show angle A, side a etc.

OpenStudy (anonymous):

can you just give them to me? because i have six other assignments due in this subject and i will copy the rules you gave me and use them on my final in a few hours....

OpenStudy (agent0smith):

a/sin A = b/sin B = c/sin C c^2 = a^2 + b^2 - 2ab cos(C)

OpenStudy (agent0smith):

You still may need to look at the pictures to get an understanding of which side/angle is which.

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