Find the Indicated Matrix $A = \left[ \begin{array} { r r r } 3 & - 2 & 1 \\ 0 & 4 & - 2 \end{array} \right]$

question 8

Multiple Choice

Find the indicated matrix.
-Let $A = \left[ \begin{array} { r r r } 3 & - 2 & 1 \\ 0 & 4 & - 2 \end{array} \right]$ and $B = \left[ \begin{array} { r r } 3 & 0 \\ - 2 & 1 \end{array} \right]$ . Find $A B$ .

• A) \(\left[ \begin{array} { r r } 9 & - 6 \\ - 6 & 8 \\ 3 & - 4 \end{array} \right]\)
• B) \(\left[ \begin{array} { l l } 9 & 0 \\ 0 & 4 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r r } 9 & - 6 & 3 \\ - 6 & 8 & - 4 \end{array} \right]\)
• D) not defined

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Definitions:

Malpighian Tubes

The excretory system of certain arthropods, like insects and spiders, used for removing wastes and maintaining osmotic balance.

Liver

Abdominal organ that produces plasma proteins and bile, filters the blood, and stores glycogen.

Urine Concentration

The process by which the kidneys regulate the water content and solute composition of urine, affecting its overall concentration.

Distal Tubule

A portion of the kidney nephron that functions in the reabsorption of electrolytes and water, and the secretion of hydrogen and potassium ions.