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Mathematics 21 Online
OpenStudy (anonymous):

HELP!!! PLEASE FAN && MEDAL Line AB contains points A (0, 0) and B (2, 2). Line CD contains points C (3, 1) and D (5, 3). Lines AB and CD are parallel----> my answer perpendicular neither @bibby @Zale101 @triciaal @sourwing

OpenStudy (zale101):

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