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What is the midpoint of a segment whose endpoints are (9, -9) and (-3, 7)?
The midpoint of a segment whose endpoints are (9, -9) and (-3, 7) is (3, -1). M = [(9-3)/2, (-9+7)/2]; M = (6/2, -2/2); M = (3, -1)
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Asked 8/10/2011 7:19:30 PM
Updated 7/27/2014 7:58:40 PM
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The midpoint of a segment whose endpoints are (9, -9) and (-3, 7) is (3, -1). M = [(9-3)/2, (-9+7)/2]; M = (6/2, -2/2); M = (3, -1)
Added 7/27/2014 7:58:40 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [7/27/2014 8:01:00 PM]
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What is the slope of the line that contains the points (8, 3) and (8, –7)?
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Updated 7/31/2014 10:47:22 AM
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The slope of the line that contains the points (8, 3) and (8, -7) is undefined. m = (-7-3)/(8-8); m = -10/0
Added 7/31/2014 10:47:22 AM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [7/31/2014 10:51:33 AM]
Two angles are _____ if and only if the sum of their measures is 180°.
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Updated 5/31/2014 9:30:23 AM
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Two angles are SUPPLEMENTARY if and only if the sum of their measures is 180°.
Added 5/31/2014 9:30:23 AM
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