Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

marcoduuuh

  • one year ago

What is the length of side x in the triangle below? A. 18.46 B. 28.48 C. 24.63 D. 21.21 E. 19.65 F. 24.04 (Picture below.)

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

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

    SOH-CAH-TOA |dw:1359045969808:dw| You have the adjacent and hypotenuse, so we use cosine. cos = adj/hyp cos45 = 17/x

  3. ashishthomas7
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the given triangle can be drawn as |dw:1359046012943:dw|

  4. ashishthomas7
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    use eqn which @jazy told

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

    your post is blinking y

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

    cos(45) = 17/x 0.707 = 17/x Multiply both sides by x. 0.707x = 17 Divide both sides by 0.707. x = 17 / 0.707 What do you get?

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

    1377.69?

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

    @tayluvsya what?

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

    By the way, this calculator helps a lot with these kind of equations. My teacher recommended it. (: http://web2.0calc.com/

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

    Marco divide 17 by 0.707.

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

    your question was blinking it stopped never mind

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

    Oh cool! Thanks @jazy. And I got 24.05?

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

    Yeah you're right. (: Actually when I did cos(45) it was actually 0.7071. So 17 divided by 0.7071, rounded would be 24.04.

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

    Ups, I rounded it wrong :p

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

    No you got it right, I rounded too early in the process, sorryyyy! (:

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.