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OpenStudy (anonymous):
Simplify the expression. (2)^-2
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OpenStudy (anonymous):
.25
OpenStudy (anonymous):
i got that but the answer choices are -4, 4,1/4 or -1/4
OpenStudy (anonymous):
.25 is equal to 1/4
OpenStudy (unklerhaukus):
x^-n = 1/x^n
OpenStudy (anonymous):
|dw:1396276729052:dw| => |dw:1396276793790:dw|
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