QuestionWhich expression is equivalent to $\left(x^{\frac{1}{2}} y^{\frac{1}{4}} z\right)^{-2}$ ? $\frac{x^{\frac{1}{2}}}{y z^{2}}$ $\frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}} z^{2}}$ $\frac{y^{\frac{1}{2}}}{x z^{2}}$ Mark this and return Save