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KiArUnsYu

  • 3 years ago

What is the distance between points (12, 4) and (18, –1)? Round to the nearest tenth. 7.8 6.1 4.7 9.9

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  1. hartnn
    • 3 years ago
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    Distance between points (x1,y1) and (x2,y2) is \(\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\)

  2. hartnn
    • 3 years ago
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    can you find 'd' now ?

  3. KiArUnsYu
    • 3 years ago
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    yes. thanks.

  4. hartnn
    • 3 years ago
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    welcome ^_^ if you want to verify your answer, post it...i'll verify for u.

  5. KiArUnsYu
    • 3 years ago
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    okay.

  6. KiArUnsYu
    • 3 years ago
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    i got \[\sqrt{-23}\]

  7. hartnn
    • 3 years ago
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    how ? that isn't correct..

  8. KiArUnsYu
    • 3 years ago
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    IM SO CONFUSED.

  9. hartnn
    • 3 years ago
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    ok, so we have \(\huge d=\sqrt{(12-18)^2+(4-(-1))^2}\) right? lets go step by step what is 12-18 =.... ?

  10. KiArUnsYu
    • 3 years ago
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    -6

  11. hartnn
    • 3 years ago
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    correct, and \((-6)^2 =\)

  12. KiArUnsYu
    • 3 years ago
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    -32

  13. KiArUnsYu
    • 3 years ago
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    NO 32.

  14. hartnn
    • 3 years ago
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    ? how ? 6*6 =.... ? its not 32

  15. KiArUnsYu
    • 3 years ago
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    I MEANT 36

  16. hartnn
    • 3 years ago
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    then you are correct!

  17. KiArUnsYu
    • 3 years ago
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    sorry

  18. hartnn
    • 3 years ago
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    now whats 4-(-1) =.. ?

  19. KiArUnsYu
    • 3 years ago
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    5

  20. hartnn
    • 3 years ago
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    good! and 5^2 =.. ?

  21. KiArUnsYu
    • 3 years ago
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    25.

  22. KiArUnsYu
    • 3 years ago
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    OKAY I SEE WHERE I MESSED UP!!

  23. hartnn
    • 3 years ago
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    so you have \(\sqrt {36+25}=..?\)

  24. hartnn
    • 3 years ago
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    good :) so tell me now what u get...

  25. KiArUnsYu
    • 3 years ago
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    7.8

  26. hartnn
    • 3 years ago
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    \(\checkmark \)

  27. KiArUnsYu
    • 3 years ago
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    :D THANKS!!

  28. KiArUnsYu
    • 3 years ago
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    could you help me with one more?

  29. hartnn
    • 3 years ago
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    sure! post it.

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