document.write( "Question 89891This question is from textbook Algegra & Trigonometry
\n" ); document.write( ": Short answer. Write the word or phrase that best completes each statement or answers the question. \r
\n" ); document.write( "\n" ); document.write( "Find the value of k if you have the matrix:
\n" ); document.write( "5,9
\n" ); document.write( "-2,k = 8 \r
\n" ); document.write( "\n" ); document.write( "I can't seem to even get going on this one. Not sure what to do. \r
\n" ); document.write( "\n" ); document.write( "Thanks, \r
\n" ); document.write( "\n" ); document.write( "Annie C.
\n" ); document.write( "

Algebra.Com's Answer #65356 by Annie C(1)\"\" \"About 
You can put this solution on YOUR website!
Solve by using the determinant:
\n" ); document.write( " 5(k-(-18)= 8
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\n" ); document.write( " 5k+18=8
\n" ); document.write( " -18 -18\r
\n" ); document.write( "\n" ); document.write( " 5k =-10
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\n" ); document.write( "k=-2
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