Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 12 - Matrices - Get Ready!: 7

Answer

$$3$$

Work Step by Step

The first subscript identifies the row number and the second subscript identifies the column number, so $a_{13}$ is the element of A in the first row and third column: $$a_{13}=3$$
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