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anonymous

  • one year ago

Find x. I got 103 but it isn't one of the choices.. please help?

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    m<BEC= 1/2 (110+97)

  3. hartnn
    • one year ago
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    |dw:1439064205383:dw| your formula is correct! just that <BEC was given to be 110 degrees.

  4. hartnn
    • one year ago
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    \(\Large 110 = \dfrac{97+x}{2}\)

  5. hartnn
    • one year ago
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    now try to get x :)

  6. anonymous
    • one year ago
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    I don't know how to start solving that equation :| can you show me the first step?

  7. hartnn
    • one year ago
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    ok, can you tell me how did you get m<BEC= 1/2 (110+97) ??

  8. anonymous
    • one year ago
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    the equation i was given in class was m< (the angle) = 1/2 (the degrees given)

  9. hartnn
    • one year ago
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    thats correct, a simple theorem |dw:1439064577520:dw|

  10. hartnn
    • one year ago
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    in your figure the 2 measures of arcs were, 97 and x and the angle given was 110 !

  11. hartnn
    • one year ago
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    thats how we get to \(\Large 110 = \dfrac{97+x}{2}\) makes sense?

  12. anonymous
    • one year ago
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    okay, yeah that makes sense, but now, how to I begin to solve that equation?

  13. hartnn
    • one year ago
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    start by multiplying 2 on both sides

  14. hartnn
    • one year ago
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    110*2 = 97+x subtract 97 from both sides, 110*2 -97 =x and you'll get the x ! :)

  15. anonymous
    • one year ago
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    I got 123 ! Thank you! :)

  16. hartnn
    • one year ago
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    correct! welcome ^_^

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