Understand What Is Meant by Equal Matrices
- $$\left[ \begin{array} { r r } 6 & - 8 \\- 7 & 9\end{array} \right] = \left[ \begin{array} { r r } x y \\- 7 & z\end{array} \right]$$

question 139

Multiple Choice

Understand What is Meant by Equal Matrices
- $$\left[ \begin{array} { r r } 6 & - 8 \\- 7 & 9\end{array} \right] = \left[ \begin{array} { r r } x y \\- 7 & z\end{array} \right]$$

• A) \(x = 6 ; y = - 8 ; z = 9\)
• B) \(x = 6 ; y = - 8 ; z = - 7\)
• C) \(x = 6 ; y = - 7 ; z = 9\)
• D) \(x = - 8 ; y = 6 ; z = 9\)

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Definitions:

Mucosa

The moist, inner lining of some organs and body cavities, such as the nose, mouth, lungs, and stomach, that secretes mucus.

Hemoglobin

A protein in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.

Enzymes

Biological molecules that act as catalysts to speed up chemical reactions in living organisms without being consumed in the process.

Proteins

Large, complex molecules that play many critical roles in the body, including catalyzing metabolic reactions, DNA replication, and responding to stimuli.