Fill in the Blank Using Elementary Row Operations to Form

question 97

Multiple Choice

Fill in the blank using elementary row operations to form a row-equivalent matrix.
$$\begin{array} { l } { \left[ \begin{array} { c c c } 2 & - 1 & - 9 \\8 & - 6 & 4\end{array} \right] } \\{ \left[ \begin{array} { c c c } 2 & - 1 & - 9 \\0 & \square & 40\end{array} \right] }\end{array}$$

• A) \(\left[ \begin{array} { r r r } 2 & - 1 & - 9 \\ 0 & - 2 & 40 \end{array} \right]\)
• B) \(\left[ \begin{array} { c c c } 2 & - 1 & - 9 \\ 0 & 0 & 40 \end{array} \right]\)
• C) \(\left[ \begin{array} { c c c } 2 & - 1 & - 9 \\ 0 & - 10 & 40 \end{array} \right]\)
• D) \(\left[ \begin{array} { c c c } 2 & - 1 & - 9 \\ 0 & - 1 & 40 \end{array} \right]\)
• E) \(\left[ \begin{array} { c c c } 2 & - 1 & - 9 \\ 0 & 2 & 40 \end{array} \right]\)

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Definitions:

Political Party

A group formed by people who have similar political ideologies and goals, working together to affect government decisions by having their candidates win elections and hold public office positions.

Coordinating Actions

The process of organizing activities or groups to ensure they work together effectively towards a common goal.

Nominating Candidates

The process by which political parties select and propose individuals to run for public office.

Party's Core Beliefs

Fundamental principles or tenets that form the foundation of a political party's ideology and policy positions.