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Hbadgerdontcare Group Title

__ BD bisects angle ABC. m angle ABC = 8x. M angle ABD = 2x+22. Find m angle DBC. Please show work

  • 2 years ago
  • 2 years ago

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  1. AriPotta Group Title
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    |dw:1352609221953:dw|

    • 2 years ago
  2. AriPotta Group Title
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    2(2x + 22) = 8x

    • 2 years ago
  3. Hbadgerdontcare Group Title
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    hhow would u figure all that out mathematically can you show me how to do it

    • 2 years ago
  4. AriPotta Group Title
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    you would distribute the 2 into the parentheses first

    • 2 years ago
  5. Hbadgerdontcare Group Title
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    start from the top

    • 2 years ago
  6. Hbadgerdontcare Group Title
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    like the beginning

    • 2 years ago
  7. AriPotta Group Title
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    |dw:1352609494307:dw| this angle = 8x

    • 2 years ago
  8. Hbadgerdontcare Group Title
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    i need to be able to type how i got everything like a explanation

    • 2 years ago
  9. AriPotta Group Title
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    |dw:1352609533315:dw| line BD is an angle bisector, so both of those angles would be congruent

    • 2 years ago
  10. AriPotta Group Title
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    since angles ABD and DBC are adjacent angles that make up angle ABC, we can say that 2(2x + 22) = 8x

    • 2 years ago
  11. Hbadgerdontcare Group Title
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    thats the answer?

    • 2 years ago
  12. AriPotta Group Title
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    no

    • 2 years ago
  13. AriPotta Group Title
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    what do you get after distributing the 2?

    • 2 years ago
  14. Hbadgerdontcare Group Title
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    ummmm

    • 2 years ago
  15. AriPotta Group Title
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    you know about the distributive property, yes?

    • 2 years ago
  16. Hbadgerdontcare Group Title
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    yes but i suck at it

    • 2 years ago
  17. AriPotta Group Title
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    all you do is multiply though :/

    • 2 years ago
  18. Hbadgerdontcare Group Title
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    so 2 * 2x = 4x + 44 = 8x?

    • 2 years ago
  19. AriPotta Group Title
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    after distributing, you should get 4x + 44 = 8x, yes.

    • 2 years ago
  20. AriPotta Group Title
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    now what do you do?

    • 2 years ago
  21. Hbadgerdontcare Group Title
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    so then its 44 / 4 = 11 x = 11?

    • 2 years ago
  22. AriPotta Group Title
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    you didn't show that you subtracted 4x from 8x, but yes. x = 11 :)

    • 2 years ago
  23. Hbadgerdontcare Group Title
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    so whats the answer? whats DBC?

    • 2 years ago
  24. AriPotta Group Title
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    angle DBC = 2x + 22, so just substitute 11 for x in that equation to get your answer

    • 2 years ago
  25. Hbadgerdontcare Group Title
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    oh thank you so much!!!

    • 2 years ago
  26. AriPotta Group Title
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    no problem :)

    • 2 years ago
  27. Hbadgerdontcare Group Title
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    so DBC is 44?

    • 2 years ago
  28. AriPotta Group Title
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    yes

    • 2 years ago
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