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Mathematics 21 Online
OpenStudy (anonymous):

Find the distance between the points (2, 8) and (-1, 9).

OpenStudy (anonymous):

use the distance formulae: sqrt((x1 - x2)^2 +(y1 - y2)^2)

OpenStudy (anonymous):

the answer is 2 but try work it out on your own

OpenStudy (anonymous):

sorry: the answer is root 10

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