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

meg1334

will give medal to best answer! The given measurements may or may not determine a triangle. If not, then state that no triangle is formed. If a triangle is formed, then use the Law of Sines to solve the triangle, if it is possible, or state that the Law of Sines cannot be used. C = 38°, a = 19, c = 10

  • one year ago
  • one year ago

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

    Did you try simply using Law of Sines to figure it out?

    • one year ago
  2. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    yes but i didnt understand

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

    What did you come up with?

    • one year ago
  4. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    i got sin A = 67 but that isnt in my answer choices No triangle is formed. A = 58.6°, B = 83.4°, b ≈ 15.6 A = 83.4°, B = 58.6°, b ≈ 15.6 The triangle cannot be solved with the Law of Sines.

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

    I don't understand how you got that. Please show me the steps you took to get A = 67

    • one year ago
  6. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    i used c/ sin c = a/ sin a 10/sin 37 = 19/sin a and then i divided 19 sin 38 over sin 10 and i got 67.36

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

    where did you get the 37 from?

    • one year ago
  8. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    I meant 38, i used 38 in my claculations and still got 67

    • one year ago
  9. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    calculations

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

    Are you in degree mode or radian mode?

    • one year ago
  11. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    i dont know i just typed it in and got 67, cant you check it?

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

    You must make sure you're in degree mode. That's very important.

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

    But either way it goes, you're not doing it correctly.

    • one year ago
  14. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    oh really, i hadnt noticed that im doing it wrong. I need help thats why im on here obviously

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

    \[\sin A = \frac{19\sin(38^{\circ})}{10} \\\sin A = \]

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

    Compute the right hand side again and let me know what you get. Make sure you're in degree mode.

    • one year ago
  17. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    1.169756803

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

    Okay now \[\sin A = 1.169756803\] So how do we find A?

    • one year ago
  19. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    a is 19, sin A is 1.16, what do you mean find A?

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

    A is an angle. Find it

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

    A is an Angle like theta

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

    I'm not talking about a = 19. That's a side length

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

    \[\sin (A^{\circ}) = 1.169756803\] I'm talking about Angle A. Find that.

    • one year ago
  24. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    how?

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

    You take the inverse sine of both sides to get: \[\sin^{-1}(A^{\circ}) = \sin^{-1}({1.169756803}) \\A^{\circ} = \sin^{-1}({1.169756803}) \]

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

    So compute \[\sin^{-1}({1.169756803})\]

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

    Let me know what you get.

    • one year ago
  28. meg1334
    Best Response
    You've already chosen the best response.
    Medals 0

    it says error

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

    Exactly.

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

    That's what it should say because no such angle exists.

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

    And if the angle doesn't exist, then the triangle can't possibly exist.

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

    \[-1< \sin(\theta) < 1\] means that the value of sine can only be between - or + one. So there's no such thing as \(\sin(\theta) = 1.17\)

    • 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.