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highschoolmom2010

  • one year ago

Use the Law of Sines to find the values of x and y. Round to the nearest tenth.

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  1. highschoolmom2010
    • one year ago
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  2. nincompoop
    • one year ago
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    what does the law of sines indicate?

  3. highschoolmom2010
    • one year ago
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    law of sine relates the sine of the angle to the opposite

  4. nincompoop
    • one year ago
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    \[\frac{ a }{ sinA }=\frac{ b }{ sinB }=\frac{ c }{ sinC }\] |dw:1377970093716:dw|

  5. timo86m
    • one year ago
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    It is just a ratio. Set one up using the law of sines :)

  6. highschoolmom2010
    • one year ago
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    |dw:1377970190365:dw|

  7. highschoolmom2010
    • one year ago
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    so \[\frac{ \sin 41 }{ y}=\frac{ \sin 62 }{ x }\] like that

  8. timo86m
    • one year ago
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    Not really

  9. timo86m
    • one year ago
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    |dw:1377970383972:dw|

  10. timo86m
    • one year ago
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    Solve for that angle then use it :)

  11. highschoolmom2010
    • one year ago
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    XD i do that everytime

  12. highschoolmom2010
    • one year ago
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    ^^how is it 125???

  13. nincompoop
    • one year ago
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    it isn't

  14. highschoolmom2010
    • one year ago
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    no it is 77

  15. highschoolmom2010
    • one year ago
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    |dw:1377970590585:dw|

  16. nincompoop
    • one year ago
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    125 + 62 alone makes up over 180 degrees

  17. timo86m
    • one year ago
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    LOL sorry i was looking at the 14 and 41

  18. timo86m
    • one year ago
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    |dw:1377970696576:dw|

  19. highschoolmom2010
    • one year ago
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    tis ok

  20. timo86m
    • one year ago
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    |dw:1377970767098:dw| Then do it for sin 41

  21. nincompoop
    • one year ago
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    is everything clear now or do you want further help?

  22. highschoolmom2010
    • one year ago
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    eh need help still

  23. highschoolmom2010
    • one year ago
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    \[14 \sin 62/\sin72=x\] i got 12.9974045582289724 book says it is 12.7

  24. timo86m
    • one year ago
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    Did you cross multiply?

  25. highschoolmom2010
    • one year ago
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    erm what

  26. highschoolmom2010
    • one year ago
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    oh yea i did sorry

  27. timo86m
    • one year ago
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    |dw:1377977703338:dw| I think that is how it is done :)

  28. highschoolmom2010
    • one year ago
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    im confused ^^

  29. timo86m
    • one year ago
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    That is cross multiplication silly sin(62)*14=sin(77)*x

  30. timo86m
    • one year ago
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    Look at it like this |dw:1377978428131:dw|

  31. highschoolmom2010
    • one year ago
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    i know how to cross mutiply...

  32. timo86m
    • one year ago
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    sin(62)*14=sin(77)*x ^ ^ 0.8829*14= 0.9743 * x eazy now?

  33. highschoolmom2010
    • one year ago
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    it says round to nearest tenth|dw:1377978723473:dw|

  34. timo86m
    • one year ago
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    Oh it is so round :D

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