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Ammarah

Find the value of x in the circle. Explain your reasoning.

  • one year ago
  • one year ago

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  1. Ammarah
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    |dw:1361850022162:dw|

    • one year ago
  2. jim_thompson5910
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    so you are saying EF = 15 units and HG = 15 units ?

    • one year ago
  3. Ammarah
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    yes

    • one year ago
  4. jim_thompson5910
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    these two triangles are congruent by the HL property |dw:1361850491541:dw|

    • one year ago
  5. jim_thompson5910
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    so AQ = QB by CPCTC so 4x - 1 = x+8

    • one year ago
  6. Ammarah
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    ohhh i was doing it equal to 15!!

    • one year ago
  7. jim_thompson5910
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    no, those 15s really play no part in finding x, just in showing that the two triangles are congruent

    • one year ago
  8. Ammarah
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    ohhlk so the answer is 7

    • one year ago
  9. jim_thompson5910
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    x is not 7

    • one year ago
  10. Ammarah
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    then wat?

    • one year ago
  11. jim_thompson5910
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    4x - 1 = x+8 4x - x = 8 + 1 3x = 9 x = ?

    • one year ago
  12. Ammarah
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    x=3

    • one year ago
  13. Ammarah
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    the answer in my book says 7/3

    • one year ago
  14. Mertsj
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    Congruent chords are equidistant from the center of a circle.

    • one year ago
  15. jim_thompson5910
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    must be a typo since it's just x = 3

    • one year ago
  16. Ammarah
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    ok....i guess ur right

    • one year ago
  17. Ammarah
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    i need more help

    • one year ago
  18. Mertsj
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    Are you sure it is not 4x+1 in your picture?

    • one year ago
  19. Ammarah
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    YEAH ITS 4x +1

    • one year ago
  20. Mertsj
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    So now, when you equate the distances from the center, you will get 7/3 for x.

    • one year ago
  21. jim_thompson5910
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    oh that makes more sense now

    • one year ago
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