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 - Chapter Review - Page 787: 6

Answer

[4.4 ..... 4.5] [9.5 .......-10.2] [3.4 .... -2.6]

Work Step by Step

We have two matrices: [0.4 ..... 1.5] [3.2 .......-3] [1.5 .... -2.1] AND... [4 .... 3] [6.3.... -7.2] [1.9 .... -0.5] The two matrices have the same size, so we add each corresponding element: [0.4+4 ..... 1.5+3] [3.2+6.3 .......-3+(-7.2)] [1.5+1.9 .... -2.1+(0.5)] New matrix: [4.4 ..... 4.5] [9.5 .......-10.2] [3.4 .... -2.6]
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