Find the distance between A(2, -9) and B(-5, 7) on a coordinate plane d=?

Question

Find the distance between A(2, -9) and B(-5, 7) on a coordinate plane d=?

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Khải Quang 4 years 2021-09-05T11:36:38+00:00 1 Answers 5 views 0

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  1. thnahdat
    0
    2021-09-05T11:38:01+00:00
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    Answer:

    d=17.4642

    Step-by-step explanation:

    Distance Formula: d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

    Simply plug in your 2 coordinates into the distance formula to find distance d:

    d=\sqrt{(-5-2)^2+(7-(-9))^2}

    d=\sqrt{(-7)^2+(7+9)^2}

    d=\sqrt{49+(16)^2}

    d=\sqrt{49+256}

    d=\sqrt{305}

    d=17.4642

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )