Find the Matrix Product When Possible A) $\left[\begin{array}{rrr}-8 & -5 & -8 \\-5 & -1 & 7 \\-6 & -4 & 9 \\4 & 7 & -2 \\4 & -7 & 2 \\8 & -7 & -7\end{array}\right]$

question 286

Multiple Choice

Find the matrix product when possible.
- $$\left[ \begin{array} { r r r } - 8 & - 5 & - 8 \\- 5 & - 1 & 7 \\- 6 & - 4 & 9\end{array} \right] \left[ \begin{array} { r r r } 4 & 7 & - 2 \\4 & - 7 & 2 \\8 & - 7 & - 7\end{array} \right]$$

• A)
• \(\left[\begin{array}{rrr}
• -8 & -5 & -8 \\
• -5 & -1 & 7 \\
• -6 & -4 & 9 \\
• 4 & 7 & -2 \\
• 4 & -7 & 2 \\
• 8 & -7 & -7
• \end{array}\right]\)
• B)
• \(\left[\begin{array}{rrr}
• -116 & 32 & 32 \\
• 35 & -77 & -77 \\
• 62 & -41 & -59
• \end{array}\right]\)
• C)
• \(\left[\begin{array}{rrr}
• -32 & -35 & 16 \\
• -20 & 7 & 14 \\
• -48 & 28 & -63
• \end{array}\right]\)
• D)
• \[\left[ \begin{array} { r r r }
• - 116 & 35 & 62 \\
• 32 & - 77 & - 41 \\
• 32 & - 77 & - 59
• \end{array} \right]\]

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Definitions:

Cognitive Development

Refers to the process by which a child learns to reason, solve problems, and adapt to the environment, heavily influenced by Jean Piaget's theories.

Motor Abilities

The capacity of an individual to perform movements of the muscles with optimum speed, strength, and accuracy.

Environment

The sum of all external conditions and influences affecting the life and development of an organism or population.

Cognitive Development

A field of study in neuroscience and psychology focusing on a child's development in terms of information processing, conceptual resources, perceptual skill, language learning, and other aspects of brain development.