College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 6 - Mid-Chapter Check Point - Page 627: 6

Answer

$\begin{vmatrix} -4 & -0.5 \\ 3 & 3 \end{vmatrix}$

Work Step by Step

$2C-0.5B=2\begin{vmatrix} -1 & 0 \\ 0 & 1 \end{vmatrix}-0.5\begin{vmatrix} 4 & 1 \\ -6 & -2 \end{vmatrix}=\begin{vmatrix} -2 & 0 \\ 0 & 2 \end{vmatrix}+\begin{vmatrix} -2 & -0.5 \\ 3 & 1 \end{vmatrix}=\begin{vmatrix} -2-2 & 0-0.5 \\ 0+3 & 2+1 \end{vmatrix}=\begin{vmatrix} -4 & -0.5 \\ 3 & 3 \end{vmatrix}$
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