Solve the System of Equations $$\left\{ \begin{array} { l } x - y + 3 z = - 4 \\3 x + z = 0 \\- x + y - 3 z = 16\end{array} \right.$$

question 129

Multiple Choice

Solve the system of equations.
- $$\left\{ \begin{array} { l } x - y + 3 z = - 4 \\3 x + z = 0 \\- x + y - 3 z = 16\end{array} \right.$$

• A) \(x = 4 , y = 2 , z = 0\)
• B) inconsistent (no solution)
• C) \(x = 0 , y = 0 , z = 2\)
• D) \(x = 0 , y = 2 , z = 0\)

Understand specific sampling methods such as snowball/network sampling and stratified random sampling.

Comprehend the factors influencing sample size determination.

Knowledge about the preparation and challenges of sampling frames in the digital age.

Acknowledge ethical considerations in the sampling process.