document.write( "Question 564036: two cars leave a crossroads at the same time. one heads north at 50 km/h and the other heads east at 70 km/h. how far apart are the cars after 2.0 hours? \n" ); document.write( "
Algebra.Com's Answer #365203 by mananth(16946)![]() ![]() You can put this solution on YOUR website! they are travelling at right angles to each other. \n" ); document.write( "At any given instant they form a right triangle with their starting point \n" ); document.write( " \n" ); document.write( "after 2 hours one car is 100 km away from starting point and another car 140 km\r \n" ); document.write( "\n" ); document.write( "leg1 = 100 km \n" ); document.write( "Leg2 = 140 km \n" ); document.write( " \n" ); document.write( "Hypotenuse^2 100 ^2 + 140 ^2 \n" ); document.write( "Hypotenuse^2 10000 + 19600 \n" ); document.write( "Hypotenuse^2 29600 \n" ); document.write( "take the square root \n" ); document.write( "Hypotenuse^2 172.05 km \n" ); document.write( " \n" ); document.write( " |