Wednesday
May 27, 2015

Homework Help: math

Posted by Es on Tuesday, November 13, 2012 at 8:55pm.

What is 3^-2 (it is 3 to the -2 squared)

I thought the answer was 1/9
and my friend thought it is .1 repeated
.1 with the line over it

can you tell us which one of us is correct?
Thank you

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