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highschoolmom2010 Group Title

Find the values of w and then x. Round lengths to the nearest tenth and angle measures to the nearest degree.

  • one year ago
  • one year ago

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  1. highschoolmom2010 Group Title
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    • one year ago
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  2. katherine.ok Group Title
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    Lol. you are still doing your math homework i see! Do you remember me?

    • one year ago
  3. highschoolmom2010 Group Title
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    i had to take a break my brain was smoking

    • one year ago
  4. katherine.ok Group Title
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    sin30= w/6. get w.

    • one year ago
  5. highschoolmom2010 Group Title
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    lol hi @nincompoop and @katherine.ok yes i remember

    • one year ago
  6. katherine.ok Group Title
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    Knowing w now, you now know that cos x=4/w. you know w, get x.

    • one year ago
  7. katherine.ok Group Title
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    cosx=w/4**

    • one year ago
  8. highschoolmom2010 Group Title
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    ok \[\sin (30)=\frac{ w }{ 6 }\] \[(6)*\sin 30=\frac{ w }{ 6 }*6\] \[6\sin 30=w \] w=3

    • one year ago
  9. Jhannybean Group Title
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    Good job.

    • one year ago
  10. highschoolmom2010 Group Title
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    @nincompoop i am using SOH CAH TOA :D

    • one year ago
  11. Jhannybean Group Title
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    Now that you found w, use \(\large \cos(\theta) = \frac{w}{4}\)

    • one year ago
  12. highschoolmom2010 Group Title
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    what is that symbol ^^

    • one year ago
  13. Jhannybean Group Title
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    sorry, \(\large \theta = x\). So \[\large \cos(x) = \frac{3}{4}\]\[\large x = \cos^{-1} \left(\frac{3}{4}\right)\]

    • one year ago
  14. highschoolmom2010 Group Title
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    \[\cos (x)=\frac{ 3 }{ 4 }\]

    • one year ago
  15. Jhannybean Group Title
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    \(\large \theta\) = theta, it signifies an angle measurement.

    • one year ago
  16. katherine.ok Group Title
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    if cos x= 3/4 , punch in your calculator arccos(3/4) or equivalently, cos^-1(3/4)

    • one year ago
  17. highschoolmom2010 Group Title
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    41.4=x

    • one year ago
  18. katherine.ok Group Title
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    arccos or cos^-1 is a function which returns degree or radians to fulfill the cos ratio. good job.

    • one year ago
  19. highschoolmom2010 Group Title
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    ty :DD ima fast learner

    • one year ago
  20. highschoolmom2010 Group Title
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    @katherine.ok @nincompoop @Jhannybean thanks for the help

    • one year ago
  21. Jhannybean Group Title
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    No problem.

    • one year ago
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