College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 6, Matrices and Determinants - Chapter 6 Review - Exercises - Page 539: 24

Answer

$\left[\begin{array}{c c} -0.5& -1\\ 2& 2.5\\ -4&1\end{array} \right]$

Work Step by Step

We subtract the matrices as follows: $\left[\begin{array}{c c} 0.5& 3\\ 2& 1.5\\ -2&1\end{array} \right]-\left[\begin{array}{c c} 1& 4\\ 0& -1\\ 2&0\end{array} \right]=\left[\begin{array}{c c} 0.5-1& 3-4\\ 2-0& 1.5-(-1)\\ -2-2&1-0\end{array} \right]=\left[\begin{array}{c c} -0.5& -1\\ 2& 2.5\\ -4&1\end{array} \right]$
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