A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Two boats start their journey from the same point A and travel along directions AC and AD, as shown below What is the distance, CD, between the boats? 230.9 ft 284.3 ft 115.5 ft 173.2 ft

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

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

    @jigglypuff314 please help :)

  3. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1435073326407:dw|

  4. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    remember these ratios? :)

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

    yeah thats given for a 30 60 90

  6. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    CD = BD - BC so let's first try to find BC

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

    so BC = BD - CD

  8. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    mm that was just to point out that to find CD (the answer) we should try finding BC and BD using what we know about triangles :)

  9. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    200 sqrt(3) ----- = ---------- BC 1

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

    so would you cross multiply...? I hate this chapter I'm sorry

  11. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes! cross multiply it :)

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

    200 = (BC)(sqrt3)

  13. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes, now divide both sides by sqrt(3)

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

    115.47 = BC

  15. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    that's right! :) now, let's try to find BD

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

    how would i start that

  17. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    compare the my drawing to the given picture :) the 200 is where the "x" is right? and BD is where the "x sqrt(3)" is

  18. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    since we are doing proportions, x is 1 so 200 1 ------ = --------- BD sqrt(3)

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

    BD = 346.4

  20. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    good! now CD = BD - BC so subtract the two numbers we got :)

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

    230.93 thank you!!

  22. jigglypuff314
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Glad I could help :)

  23. 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.