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Australian AMC 2009 - Senior Question 4

AMC AUSTRALIA · Australian AMC 2009 - Senior

Question 4

The value of $(0.6)^{-2}$ is
  1. $-0.36$
  2. $0.036$
  3. $\frac9{25}$
  4. $\frac{25}9$
  5. $3.6$