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16-09-2016
Mathematics

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A segment has endpoints at (-2,3) and (7,9), How long is the segment?

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nobillionaireNobley nobillionaireNobley

19-09-2016

[tex]l=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}=\sqrt{(7-(-2))^2+(9-3)^2}=\sqrt{9^2+6^2}\\=\sqrt{81+36}=\sqrt{117}=10.82 \ units[/tex]

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