document.write( "Question 389283: 1. If matrix A = [2 -4] and matrix B= [-2 5 0]
\n" ); document.write( " [3 1]
\n" ); document.write( " [-1 0]
\n" ); document.write( " a) give the dimensions of A
\n" ); document.write( " b) give the dimensions of B\r
\n" ); document.write( "\n" ); document.write( "* the matrix a looks like this (i dont know how to make the big blocks) :
\n" ); document.write( "2 -4
\n" ); document.write( "3 1
\n" ); document.write( "-1 0\r
\n" ); document.write( "\n" ); document.write( "in light of the dimensions above,
\n" ); document.write( "1.can you multiply A x B?
\n" ); document.write( "2.if so, what are the dimensions of the result
\n" ); document.write( "3.give the result if possible.
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Algebra.Com's Answer #275826 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Hi
\n" ); document.write( "If I am understanding your question properly\r
\n" ); document.write( "\n" ); document.write( "[A]=\"%28matrix%283%2C2%2C2%2C-4%2C3%2C1%2C-1%2C0%29%29\"
\n" ); document.write( "[B]=\"%28matrix%281%2C3%2C-2%2C5%2C0%29%29\"
\n" ); document.write( "a) give the dimensions of A: 3x2 ( 3 rows and 2 columns)
\n" ); document.write( "b) give the dimensions of B: 1x3 ( 1 rows and 3 columns)\r
\n" ); document.write( "\n" ); document.write( "1.can you multiply A x B? Yes (B has the same # of columns as A has rows)
\n" ); document.write( "2.if so, what are the dimensions of the result 1x2
\n" ); document.write( "3.give the result if possible.
\n" ); document.write( "-2*2 + 5*3 + 0*-1 = 11
\n" ); document.write( "-2*-4 + 5*1 +0*0 = 13
\n" ); document.write( "[B]x[A] = [11 13]\r
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