Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 2 - Reasoning and Proof - 2-1 Patterns and Inductive Reasoning - Practice and Problem-Solving Exercises - Page 86: 39


10, 13

Work Step by Step

Alternate between adding 1 and 3 to the prior term to get the next term. $\underset{+1}{\underset\Rightarrow{1}}, \underset{+3}{\underset\Rightarrow{2}},\underset{+1}{\underset\Rightarrow{5}}, \underset{+3}{\underset\Rightarrow{6}},\underset{+1}{\underset\Rightarrow{9}}, \underset{+3}{\underset\Rightarrow{10}}, 13$, . . .
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