## Algebra: A Combined Approach (4th Edition)

a. $5^{-1}=0.2$ $5^{-2}=0.04$. So the statement is false. b. $(\frac{1}{5})^{-1}=5$ $(\frac{1}{5})^{-2}=25$. So the statement is true. c. Using part a and b, this is not always true. It is only true when a is less than 1, but false when a is greater than 1. Therefore, this statement is false overall.