document.write( "Question 160266: If DF=15 and DE=6, Find EF if E is between D and F. \n" ); document.write( "
Algebra.Com's Answer #118215 by HyperBrain(694)![]() ![]() ![]() You can put this solution on YOUR website! Flashback::\r \n" ); document.write( "\n" ); document.write( "Definition of betweeness>> \n" ); document.write( " B is between A and C if \n" ); document.write( " (a) A, B, amd C are collinear, and; \n" ); document.write( " (b) AB+BC=AC\r \n" ); document.write( "\n" ); document.write( "so if E is between D and F, then\r \n" ); document.write( "\n" ); document.write( " DE+EF=DF \n" ); document.write( "but, \n" ); document.write( " DF=15 and DE=6 \n" ); document.write( "thus, \n" ); document.write( " 6+EF=15 \n" ); document.write( " 6-6+EF=15-6 \n" ); document.write( " EF=9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Power up, \n" ); document.write( "HyperBrain! \n" ); document.write( " |