Question

Does anyone know the answer or how to solve this please?

Answer 1

Answer: Choice (E)
`\displaystyle \text{xz} = \boldsymbol{\frac{\text{x}^3}{\text{zy}^2}}`

=========================================================

Step-by-step explanation:

The goal is to find what xz is equal to (in terms of x, y, and z)

We are given
`\text{z}= \frac{\text{x}^2}{\text{zy}^2}`

The only thing we're missing on the left hand side is x.

Let's multiply both sides by x.

`\text{z} = \frac{\text{x}^2}{\text{zy}^2}\\\\\text{xz} = \text{x}*\frac{\text{x}^2}{\text{zy}^2}\\\\\text{xz} = \frac{\text{x}*\text{x}^2}{\text{zy}^2}\\\\\displaystyle \text{xz} = \boldsymbol{\frac{\text{x}^3}{\text{zy}^2}}`

This points us to choice (E) as the final answer.