document.write( "Question 49700: please help!\r
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document.write( "Given 2 similar tirangels, Triangle ABC and Triangle DEF, if AB=7 and DE=12 and AC=8, then DF = _____. (round to the nearest tenth.)\r
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document.write( "A. 4.7
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document.write( "B. 13.7
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document.write( "C. 14.0\r
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document.write( "Thank you! \n" );
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Algebra.Com's Answer #33050 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! You are working with similiar triangles which is the same as working with proportions. Compare like-sides: \n" ); document.write( "7/8 = 12/x \n" ); document.write( "7x=(8)(12) [Cross-multiply] \n" ); document.write( "7x=96 \n" ); document.write( "x=13.71 \n" ); document.write( " |