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anonymous

  • one year ago

Find the measure of angle T

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @Nnesha

  3. anonymous
    • one year ago
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    @Hero

  4. anonymous
    • one year ago
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    @Preetha

  5. anonymous
    • one year ago
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    I used the law of cosines but my anwer doen't match any of the options

  6. Nnesha
    • one year ago
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    show ur work? what did you get ?

  7. anonymous
    • one year ago
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    My work is: 8.5^2 = 13^2 + 11^2 -2(11)(13) cosT

  8. anonymous
    • one year ago
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    My answer was 8.65

  9. Nnesha
    • one year ago
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    alright gimme a sec

  10. Nnesha
    • one year ago
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    well i didn't get 8.65

  11. anonymous
    • one year ago
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    What did you do?

  12. anonymous
    • one year ago
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    And what did you get?

  13. anonymous
    • one year ago
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    Wait, I just did it again and got 40.5...

  14. Nnesha
    • one year ago
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    well i took square of 8.5 and 11 13 and then add 11^2 + 13^2 ...

  15. anonymous
    • one year ago
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    Is that right?

  16. Nnesha
    • one year ago
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    do you have options ?

  17. anonymous
    • one year ago
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    40.5° 76° 67° 35.4°

  18. anonymous
    • one year ago
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    I got A the second time

  19. Nnesha
    • one year ago
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    let me do it again i just want to mke sure..

  20. anonymous
    • one year ago
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    ok

  21. Nnesha
    • one year ago
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    i got 40.447 so that's the only one looks right

  22. anonymous
    • one year ago
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    yeah, thanks!

  23. anonymous
    • one year ago
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    do u think u can help me in one more problem?

  24. Nnesha
    • one year ago
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    i'lltry

  25. anonymous
    • one year ago
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    ok, so we need to find the measure of angle T again but with this triangle

  26. anonymous
    • one year ago
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    12^2 = 19^2 + 22^2 - 2(19) (22) cosT 144 = 361 + 484 - 836 cosT 144 = 845 - 836 cosT -701 = -836 cosT -701 / -836 = cosT 0.8385167464 = cosT cos^-1 (0.8385167464) = cos^-1 (cosT) 33.02 ≈ T

  27. anonymous
    • one year ago
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    That's my work and answer

  28. anonymous
    • one year ago
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    @Nnesha

  29. Nnesha
    • one year ago
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    right

  30. anonymous
    • one year ago
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    Thank u!!!

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