Use Matrices to Solve the System $$\left\{ \begin{array} { r r } 2 x - y - 9 z & = - 33 \\- 8 x - 3 z & = - 71 \\2 y + z & = 9\end{array} \right.$$

question 15

Multiple Choice

Use matrices to solve the system.
- $$\left\{ \begin{array} { r r } 2 x - y - 9 z & = - 33 \\- 8 x - 3 z & = - 71 \\2 y + z & = 9\end{array} \right.$$

• A) \(( 7,5,2 )\)
• B) \(\varnothing\)
• C) \(( 7,2,5 )\)
• D) \(( - 7,2,14 )\)

Understand the principles behind circuit input and output components.

Comprehend the operation of control devices and their role in circuits.

Apply basic concepts of wire numbering and documentation in circuit diagrams.

Understand the implementation of logic expressions in control circuits.

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