document.write( "Question 417833: determine if the pair of lines is parallel, perpendicular, or neither\r
\n" ); document.write( "\n" ); document.write( "2x+5y=8
\n" ); document.write( "5x-2y=1
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Algebra.Com's Answer #292627 by robertb(5830)\"\" \"About 
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perpendicular. \n" ); document.write( "
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