Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 3 Linear Systems and Matrices - 3.5 Perform Basic Matrix Operations - 3.5 Exercises - Skill Practice - Page 190: 3


The result of a matrix cannot have different dimensions than the original matrix.

Work Step by Step

Correcting the student's error: $$\begin{bmatrix} 9 +4.1 \\ -5+3.8 \end{bmatrix}= \begin{bmatrix} 13.1\\ -1.2 \end{bmatrix}$$
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