Mathematics, 09.12.2021 06:40 leleee10
Calculate the distance between the points H=(-2, -5) and K=(-7, 1) in the coordinate plane. Give an exact answer (not a decimal approximation).
Answers: 3
![d=\sqrt{(\Delta x)^2+(\Delta y)^2}= \sqrt{[(-2)-(-7)]^2+[(-5)-(1)]^2} = \sqrt{(-2+7)^2+(-5-1)^2}=\sqrt{(5)^2+(-6)^2}=\sqrt{(25+36)}=\sqrt {61}](/tpl/images/2589/0966/43c2b.png)
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