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Which expression is equivalent to (3^2)^-2

a.-81
b.-12
c.1/81
d.1/12

2 Answers

7 votes

Answer:

Option c is correct
(1)/(81)

Explanation:

We are given an expression and we find its equivalent by solving it


(3^(2))^(-2)

first solve 3^{2}which is equal to 3 * 3 = 9


9^(-2)\\\\(1)/(9^(2))\\\\(1)/(81)

User Gabriel Theron
by
7.3k points
2 votes

Answer: c.1/81


Explanation:

1. The negative exponent indicates that (3²)² is actually in the denominator, thererfore,, you can rewrite the expression as it is shown below:


(1)/(3^(2))^(2)

2.By the properties of exponents you raise a powers of powers, you must multiply the exponents shown, then:


(1)/(3^(4))

3. Then. you obtain that the equivalent expression is:


(1)/(81)


User Geeky Ninja
by
6.9k points