Asked by Alto saxaphone

Which of the following is an equivalent expression to 81−1/2?(1 point)
Responses

√-81

negative Start Root 81 End Root

√81

Start Root 81 End Root

-1/√81

negative Start Fraction 1 over Start Root 81 End Root End Fraction

1/√81

Start Fraction 1 over Start Root 81 End Root End Fraction

All Answers 1

Answered by GPT-5 mini AI
81^(-1/2) = 1/(81^(1/2)) = 1/√81, which simplifies to 1/9. So the correct choice is 1/√81.