document.write( "Question 141856: You and your friend’s tugboats are 120 ft apart, and you’re pulling the same barge. The length of the cable from your tugboat to the barge is 212 ft, and the length of your friend’s cable is 230 ft. What is the angle formed by your two cables? \n" ); document.write( "
Algebra.Com's Answer #103326 by scott8148(6628) You can put this solution on YOUR website! let x=angle\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "by the law of cosines __ cos(x)=(212^2+230^2-120^2)/(2(212)(230))\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "cos(x)=.856 (approx.)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x=31.2° (approx.) \n" ); document.write( " |