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anonymous

  • 5 years ago

solve this and show all your work (4,-2) (b,9); d=5squareroot sign5 solve using the distance formula

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  1. anonymous
    • 5 years ago
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    Distance \[=5 \sqrt{5}\]

  2. anonymous
    • 5 years ago
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    Distance Formula \[\sqrt{(x_2 -x_1)^2+(y_2 -y_1)^2)}\]

  3. anonymous
    • 5 years ago
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    Plug in what you know and set it equal to \[5\sqrt {5}\]

  4. anonymous
    • 5 years ago
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    i dont understand my book says the answer should be 2,6

  5. anonymous
    • 5 years ago
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    Okay, let work it through... \[\sqrt{(4-b)^2+(-2-9)^2}=5\sqrt{5}\]

  6. anonymous
    • 5 years ago
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    \[\sqrt{(16-8b+b^2)+(-11)^2}=5\sqrt{5}\] (16-8b+b^2)+(-11)^2=125

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