SOLUTION: What is the missing number in the sequence ? 64, -16, 4, -1, ___

SOLUTION: What is the missing number in the sequence ? 64, -16, 4, -1, ___

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Question 1044652: What is the missing number in the sequence ?
64, -16, 4, -1, ___
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Geometric progression. Common ratio for successive terms.
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