Perform Scalar Multiplication
-Let $A = \left[ \begin{array} { r r r } - 9 & - 3 & 8 \\ - 1 & - 6 & 8 \\ 9 & 6 & 6 \end{array} \right]$

question 129

Multiple Choice

Perform Scalar Multiplication
-Let $A = \left[ \begin{array} { r r r } - 9 & - 3 & 8 \\ - 1 & - 6 & 8 \\ 9 & 6 & 6 \end{array} \right]$ and $B = \left[ \begin{array} { r r r } - 3 & 8 & 9 \\ - 5 & - 4 & 1 \\ 6 & 1 & 9 \end{array} \right]$ . Find 2A - 4B.

• A)
• \(\left[ \begin{array} { r r r } - 6 & - 38 & - 20 \\ 18 & 4 & 12 \\ - 6 & 8 & - 24 \end{array} \right]\)
• B)
• \(\left[\begin{array}{rrr}
• -21 & 2 & 25 \\
• -7 & -16 & 17 \\
• 24 & 13 & 21
• \end{array}\right]\)
• C)
• \(\left[ \begin{array} { r r r } - 12 & 5 & 17 \\ - 6 & - 10 & 9 \\ 15 & 7 & 15 \end{array} \right]\)
• D)
• \(\left[ \begin{array} { r r r } - 12 & - 6 & 15 \\ 5 & - 10 & 7 \\ 17 & 9 & 15 \end{array} \right]\)

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Definitions:

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A persuasion technique where a small initial request is made in order to gain compliance with a larger request later.

Door-In-The-Face

A persuasion technique where a large, unreasonable request is made first, followed by a smaller, more reasonable request.

Lowballing

A sales and negotiation tactic where an initial, lower price is offered to entice a buyer, before it is subsequently raised once the buyer is interested or committed.

Mere Exposure

A mental effect where individuals grow fond of things simply because they are accustomed to them.