document.write( "Question 708472: find the midpoint of the segment whose endpoints are (3,2,-9) and (-7,4,-11) \n" ); document.write( "
Algebra.Com's Answer #436110 by Alan3354(69443)\"\" \"About 
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find the midpoint of the segment whose endpoints are (3,2,-9) and (-7,4,-11)
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\n" ); document.write( "It's the average of x, y & z separately.
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