Find AB, If Possible $A = \left[ \begin{array} { l l l } 4 & 4 & 1 \\ 7 & 5 & 8 \end{array} \right]$

question 135

Multiple Choice

Find AB, if possible.
- $A = \left[ \begin{array} { l l l } 4 & 4 & 1 \\ 7 & 5 & 8 \end{array} \right]$ and $B = \left[ \begin{array} { c c } - 6 & 7 \\ 3 & 8 \\ 1 & 7 \end{array} \right]$

• A) Not possible
• B) \(\left[ \begin{array} { l l } - 37 & - 11 \\ - 65 & - 47 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r } - 11 & 67 \\ - 19 & 145 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r } - 54 & - 11 \\ - 120 & - 19 \end{array} \right]\)

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Definitions:

Future Value

The value of an investment or sum of money at a specified date in the future, taking into account interest or capital gains.

Ordinary Annuity

A series of equal payments made at fixed intervals over a specified period.

Ordinary Annuities

A sequence of identical payments distributed at the conclusion of successive intervals during a predetermined duration.

Annuities Due

Annuities that require payment at the beginning of each period, as opposed to the end, used often in leases and loan repayments.