document.write( "Question 377438: find the distance between the points
\n" ); document.write( "a(3,-7)and b(-5,9
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Algebra.Com's Answer #268195 by rfadrogane(214)\"\" \"About 
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find the distance between the points
\n" ); document.write( "a(3,-7)and b(-5,9).\r
\n" ); document.write( "\n" ); document.write( "sol'n:
\n" ); document.write( " distance(d) = sq. root of [(x2-x1)^2+(y2-y1)^2]
\n" ); document.write( " so, at pt. P1(3,-7)& P2(-5,9)
\n" ); document.write( " d = sq. root of [(-5-3)^2 + (9+7)^2]
\n" ); document.write( " d = sq. root of [64 + 256]
\n" ); document.write( " d = sq. root of (320)
\n" ); document.write( " d = 17.888 units ----answer
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