document.write( "Question 1068726: Given:
\n" ); document.write( "A= $\"+68+\"$ a= ?
\n" ); document.write( "B= ? b= $\"+8+\"$
\n" ); document.write( "C= ? c= $\"+5+\"$
\n" ); document.write( "What is the value of B?
\n" ); document.write( "A.) $\"+69.91+\"$
\n" ); document.write( "B.) $\"+74.98+\"$
\n" ); document.write( "C.) $\"+76.44+\"$
\n" ); document.write( "D.) $\"+77.39+\"$ \n" ); document.write( "

Algebra.Com's Answer #683995 by Boreal(15235) $\"\"$ $\"About$

You can put this solution on YOUR website!
a^2=b^2+c^2-2bc cos A
\n" ); document.write( "=64+25-2(40) cos 48; the last term is 29.97
\n" ); document.write( "a=7.68
\n" ); document.write( "sin 68/7.68=sin B/8
\n" ); document.write( "sin B=8 sin 68/7.68
\n" ); document.write( "=0.9658
\n" ); document.write( "arc sin of that =74.98 degrees
\n" ); document.write( "B \n" ); document.write( "

\n" );