The Sizes of Two Matrices a and B Are Given $4 \times 4$

question 71

Multiple Choice

The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, if the products are
defined.
-A is $4 \times 4$ , B is $4 \times 4$ .

• A) \(\mathrm { AB }\) is \(8 \times 4\), BA is \(8 \times 4\).
• B) \(\mathrm { AB }\) is \(4 \times 4\), BA is \(4 \times 4\).
• C) \(\mathrm { AB }\) is \(4 \times 8\), BA is \(4 \times 8\).
• D) \(\mathrm { AB }\) is \(1 \times 1\), BA is \(1 \times 1\).

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Definitions:

Aggressive Behavior

Actions or conduct that is forceful, hostile, or attacking.

Independent Variable

The variable that is manipulated or changed in an experiment to observe its effect on the dependent variable.

Dependent Variable

A variable in an experiment or model that is expected to change in response to changes in independent variable(s).