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 - Lesson Check - Page 729: 5

Answer

9

Work Step by Step

In order to find how many elements are in a matrix, multiply the number of rows by the number of columns of the matrix. We multiply 3 by 3 to obtain that there are 9 elements in this matrix.
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