FIND THE ERROR Marika and Lori are finding the seventh term of the geometric sequence 9

Chapter 11, Problem 54

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FIND THE ERROR Marika and Lori are finding the seventh term of the geometric sequence 9, 3, 1, . Who is correct? Explain your reasoning. Marika r = 3_ 9 or _1 3 a 7 = 9 ( _1 3 ) 7 1 = _1 81 Lori r = _9 3 or 3 a 7 = 9 3 7 1 = 6561

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