Question

Which expression is equivalent to (StartFraction x Superscript negative 4 Baseline y Over x Superscript negative 9 Baseline y Superscript 5 Baseline EndFraction) Superscript negative 2? Assume x not-equals 0, y not-equals 0.

StartFraction y Superscript 8 Baseline Over x Superscript 10 Baseline EndFraction
StartFraction x Superscript 5 Baseline Over y Superscript 7 Baseline EndFraction
StartFraction x Superscript 5 Baseline Over y Superscript 4 Baseline EndFraction
StartFraction x Over y Superscript 7 Baseline EndFraction

Answer 1

Answer is A on edgetrash2020

Explanation:

Answer 2

`(y^8)/(x^(10))`

Explanation:

Apparently, you want to simplify ...

`\left((x^(-4)y)/(x^(-9)y^5)\right)^(-2)\\\\=(x^(-4-(-9))y^(1-5))^(-2)=x^(5(-2))y^(-4(-2))\\\\=x^(-10)y^8=\boxed{(y^8)/(x^(10))}`