SOLUTION: 9 to the negative 2nd power. Evaluate this expression

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Question 400467: 9 to the negative 2nd power. Evaluate this expression
Answer by algebrahouse.com(1079) About Me  (Show Source):
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9^-2

1
-- {to make a negative exponent positive, move it up or down}
9^2

1
-- {9 squared is 81}
81

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