Evaluate the Expression ​
A) $$\left[ \begin{array} { c c c c } 6 & - 10 & - 14 & 10 \\27 & - 45 & - 63 & 45 \\12 & - 20 & - 28 & 20\end{array} \right]$$

question 27

Multiple Choice

Evaluate the expression. $$\left[ \begin{array} { l } - 2 \\- 9 \\- 4\end{array} \right] \left( \left[ \begin{array} { l l } - 3 & 5\end{array} \right] + \left[ \begin{array} { l l } 7 & - 5\end{array} \right] \right)$$ ​

• A) \[\left[ \begin{array} { c c c c }
• 6 & - 10 & - 14 & 10 \\
• 27 & - 45 & - 63 & 45 \\
• 12 & - 20 & - 28 & 20
• \end{array} \right]\]
• B) \[\left[ \begin{array} { c }
• - 8 \\
• - 36 \\
• - 16
• \end{array} \right]\]
• C) \[\left[ \begin{array} { c c c }
• - 8 & - 36 & - 16 \\
• 0 & 0 & 0
• \end{array} \right]\]
• D)not possible
• E) \[\left[ \begin{array} { c c }
• - 8 & 0 \\
• - 36 & 0 \\
• - 16 & 0
• \end{array} \right]\]

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Definitions:

Spinal Cord

An elongated part of the central nervous system encased within the spine that transmits nerve signals between the brain and the rest of the body.

Medulla

The medulla is a part of the brainstem responsible for controlling vital bodily functions, such as breathing, heart rate, and blood pressure.

Limbic System

A complex system of nerves and networks in the brain, associated with basic emotions and drives.

Hypothalamus

A region of the brain that regulates vital functions such as temperature, thirst, hunger, sleep, and emotions.