document.write( "Question 730932: A student travel north for 7km and then west for 5 km.how far is the student from the starting point? \n" ); document.write( "
Algebra.Com's Answer #446924 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A student travel north for 7km and then west for 5 km.how far is the student from the starting point? \n" ); document.write( "----- \n" ); document.write( "Assume the student starts at (0,0) \n" ); document.write( "7 km north moves him to (0,7) \n" ); document.write( "5 km west moves him to (-5,7) \n" ); document.write( "---- \n" ); document.write( "distance from (0,0) to (-5,7) = ? \n" ); document.write( "----- \n" ); document.write( "d = sqrt[5^2+7^2] = sqrt[25+49] = sqrt[74] = 8.6 km \n" ); document.write( "==================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |