Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 12 - Data Analysis and Probability - 12-1 Organizing Data Using Matrices - Practice and Problem-Solving Exercises - Page 729: 11


2 -1 5 -1 0 10

Work Step by Step

In order to add matrices, we add each number and its corresponding number. Thus, we add the two numbers in the upper left corner of the first two matrices and put the sum in the upper left corner of the new matrix. We do the same thing for the numbers in the upper right corner, middle left side, middle right side, lower left corner, and lower right corner. Thus, we obtain the answer: 2 -1 5 -1 0 10
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