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) \(( - 7,2,14 )\)

Comprehend how inheritance enables the reuse of attributes and methods from the base class.

Identify the access levels for instance variables and the impact of these levels on class accessibility.

Understand the syntax and purpose of the keywords this and super in inheritance.

Recognize the role of constructors in the inheritance hierarchy.

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