Question

by what number should minus2 by 9 raise to power minus 2 be divided to get 3
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Answer 1

(-2/9)^-2=

9/-2^2=

9/4=

2.25 (or) 2 1/4

So, the number is 3/2.25 which is 1.333(infinite 3) (or) 1 1/3