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Identify the “rule” for the following sequence and give the next three terms: 28, 14, 7, 3.5, ..
Would the sequence be geometric, arithmetic, or neither?

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Answer:

Step-by-step explanation:

r = a₃/a₂ = 0.5

a₅ = a₄r = 3.5×0.5 = 1.75

a₆ = a₅r = 1.75×0.5 = 0.875

a₇ = a₆r = 0.875×0.5 = 0.4375

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