Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

highschoolmom2010 Group Title

using Sin, Cos, Tan For parts (a)–(c), find the value of w to the nearest tenth

  • one year ago
  • one year ago

  • This Question is Closed
  1. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    • one year ago
    1 Attachment
  2. ganeshie8 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    familiar wid SOH-CAH-TOA ?

    • one year ago
  3. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    you are zipping along... now learning trig ?

    • one year ago
  4. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    when you get time (if you want to see more info) http://www.khanacademy.org/math/trigonometry/basic-trigonometry/basic_trig_ratios/v/basic-trigonometry

    • one year ago
  5. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    not really understand but @phi that is in my lessons for geometry

    • one year ago
  6. ganeshie8 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah usually they put trig ratios right after similar triangles

    • one year ago
  7. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    i can kinda do it not really well yet

    • one year ago
  8. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    khan explains it better than trying to learn it from reading explanations here. This site is better for going over your problems

    • one year ago
  9. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok ok so watch his videos first :D

    • one year ago
  10. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1375894551709:dw| doesnt really show how to do this @ganeshie8

    • one year ago
  11. ganeshie8 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    first go to the 54 degree corner and stare at the triangle from there

    • one year ago
  12. ganeshie8 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1375895636780:dw|

    • one year ago
  13. ganeshie8 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1375895683012:dw|

    • one year ago
  14. ganeshie8 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    thats opposite side eh ?

    • one year ago
  15. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    yes thats the opposite

    • one year ago
  16. ganeshie8 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    wat about 17, wat is it

    • one year ago
  17. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Here is khan working this type of problem http://www.khanacademy.org/math/trigonometry/basic-trigonometry/basic_trig_ratios/v/example--trig-to-solve-the-sides-and-angles-of-a-right-triangle

    • one year ago
  18. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    the hypotenuse is opposite the 90º angle. 17 in (a) is the hypotenuse

    • one year ago
  19. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    idk what i was thinking it is hyp,

    • one year ago
  20. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    this is really confusing

    • one year ago
  21. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    @phi i think i got it |dw:1375975866022:dw| \[\sin 54=\frac{ w }{ 17 }\] \[17*\sin 54=\frac{ w }{ 17 }*17\] \[17\sin54=W\] \[W \approx13.8\]

    • one year ago
  22. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    yes.

    • one year ago
  23. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok now can yall check my b and c part when i get the posted

    • one year ago
  24. ganeshie8 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yea sure. remember this - hypotenuse is the longest side. it wont change no matter which corner u go

    • one year ago
  25. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    once you get the idea and stay focused (don't make a dumb mistake) and you know how to work a calculator this stuff is not hard.

    • one year ago
  26. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1375976336846:dw| this one i get mixed up \[\tan \frac{ 1.0 }{ W }\] \[W* \tan 28=\frac{ 1.0 }{ W }*W\] \[W \tan 28=1.0\] im unsure of how to do that

    • one year ago
  27. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    remember that tan(28) is some (ugly) number which a calculator will know. divide both sides by tan(28)

    • one year ago
  28. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    you get w= 1/tan(28)

    • one year ago
  29. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    but when i plug in 1/tan(28) the calculator gave me this -3.55328644813

    • one year ago
  30. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    your calculator is in "radian mode" you want to be in degree mode

    • one year ago
  31. ganeshie8 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    change the mode to degrees

    • one year ago
  32. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ohh ok

    • one year ago
  33. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    1.88

    • one year ago
  34. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    so approx 1.9

    • one year ago
  35. phi Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    yes

    • one year ago
  36. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    horray ok and for the last pne

    • one year ago
  37. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1375977256082:dw| \[\cos(33)=\frac{ w }{ 4.5 }\] \[4.5*\cos(33)=\frac{ w }{ 4.5 }*4.5\] \[4.5\cos(33)=W\] \[W \approx3.8\]

    • one year ago
  38. highschoolmom2010 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ty @phi & @ganeshie8 for the help

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.