A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

~*~*~will fan and medal~*~*~ HELP!! find measure C. (image below) Round the answer to the nearest tenth.

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

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

    @SolomonZelman

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    hi

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    hello

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    need help

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

    yes i do..

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok

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

    use the Cosine rule cos C = a^2 + b^2 - c^2 -------------- 2ab

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

    (the side c is opposite < C , a oppositse <A and b is opposite angle B)

  10. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i got 260 over 762? @welshfella

  11. welshfella
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    for cos C?

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

    2.93 ... ? i am confused

  13. welshfella
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    cos C = (12.5^2 + 15^2 - 11^2) / (2*12.5*15)

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

    okay.. 248 / 375 ?

  15. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @welshfella i do not think that is right

  16. welshfella
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no its not it should be 260.25 / (2*12.5* 15 what do you get that?

  17. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry, first thing in the morning, takes a minuet to process. but 260.25 / 375 ??

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

    yea

  19. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and cos would be .99968 which isnt an answer

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

    so to find angle C use cos-1 on your calculator.

  21. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it says error when i try

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

    260.25 / 375 = 0.694 you need cos-1 0.694 - have you set ur calculatoe to degrees?

  23. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i just dide and the answer is 46.0524!! thank you @welshfella

  24. welshfella
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes yw

  25. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.