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Simplify 7^-2 =1/(7^2)=1/3
a. 1/49
b. 1/21
c. 1/9
d. 1/3

User Miamy
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1 Answer

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Final answer:

The expression 7^-2 simplifies to 1/49, by rewriting the negative exponent as a reciprocal and squaring the base.

Step-by-step explanation:

The question asks to simplify the expression 7^-2. The expression 7^-2 can be rewritten as 1/(7^2) because a negative exponent indicates that the base should be taken as the reciprocal. Therefore, 7^-2 is equivalent to 1/(7^2) which simplifies to 1/49. Hence, the correct answer is 1/49. This is a common type of problem in algebra where we are required to apply the laws of exponents to simplify expressions.

User Priska Aprilia
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