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AcidRa1n

Stupid Question

  • one year ago
  • one year ago

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  1. AcidRa1n
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    http://img543.imageshack.us/img543/1751/screenshot20120530at947.png

    • one year ago
  2. AcidRa1n
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    I cant seem to understand this^

    • one year ago
  3. Grazes
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    which part do you understand up to?

    • one year ago
  4. AcidRa1n
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    x= 16 (21

    • one year ago
  5. AcidRa1n
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    The square root of 336 is 18...

    • one year ago
  6. AcidRa1n
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    ?? anyone lol?

    • one year ago
  7. Grazes
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    The square root of 336 isn't 18 o-o

    • one year ago
  8. AcidRa1n
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    !?!??!

    • one year ago
  9. Grazes
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    18 x 18= 324

    • one year ago
  10. AcidRa1n
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    18.3

    • one year ago
  11. Grazes
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    That's if you enter it in your calculator. \[4\sqrt{21}\]is the radical form of it. Also, 18.3 is rounded, so it's less accurate

    • one year ago
  12. Grazes
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    Do you know how to simplify it so that it turns into the radical form?

    • one year ago
  13. AcidRa1n
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    No, and I dont have time, Im reviewing for a test tomrrow.

    • one year ago
  14. AcidRa1n
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    The answer is 18.3 watever right?

    • one year ago
  15. AcidRa1n
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    They just did the rest to show you a diferent way?

    • one year ago
  16. Grazes
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    It's actually the standard way...

    • one year ago
  17. Grazes
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    Have you done this in class?

    • one year ago
  18. AcidRa1n
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    Yeah like a thousands times.. I was just confused on how they did it in the textbook.

    • one year ago
  19. Grazes
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    Alright. So we want to divide the number by a perfect square,right? Like when \[\sqrt{18}=\sqrt{9\times2}\]

    • one year ago
  20. Grazes
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    We know that\[\sqrt{9}=3 \]so the equation turns into \[3\sqrt{2}\], leaving the 2 because it's not a perfect square and it cannot be divided more times to make a perfect square

    • one year ago
  21. AcidRa1n
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    Ohhh

    • one year ago
  22. Grazes
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    Do you get it?

    • one year ago
  23. AcidRa1n
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    yep

    • one year ago
  24. Grazes
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    Then do \[\sqrt{48}\]

    • one year ago
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