The Chart Shows the Number of Personal Bankruptcy Filings in Three

question 162

Multiple Choice

The chart shows the number of personal bankruptcy filings in three City regions during various months of 2001 - 2002. $$\begin{array} { | l | l | l | l | } \hline & \text { Jan 01 } & \text { Jul 01 } & \text { Jan 02 } \\\hline \text { North } & 140 & 140 & 140 \\\hline \text { West } & 290 & 290 & 230 \\\hline \text { East } & 230 & 230 & 190 \\\hline\end{array}$$ Write a matrix product whose computation gives the total number by which bankruptcy filings in January, 2001, exceeded filings in January, 2002.

• A) \(\left[ \begin{array} { l l l }
• 0 & 1 & 1
• \end{array} \right] \cdot \left[ \begin{array} { l l l }
• 140 & 140 & 140 \\
• 290 & 290 & 230 \\
• 230 & 230 & 190
• \end{array} \right] \cdot \left[ \begin{array} { c }
• 1 \\
• 1 \\
• - 1
• \end{array} \right] = [ 110 ]\)
• B) \(\left[ \begin{array} { l l l }
• 1 & 1 & 1
• \end{array} \right] \cdot \left[ \begin{array} { l l l }
• 140 & 140 & 140 \\
• 290 & 290 & 230 \\
• 230 & 230 & 190
• \end{array} \right] \cdot \left[ \begin{array} { c }
• - 1 \\
• 0 \\
• - 1
• \end{array} \right] = [ 90 ]\)
• C) \(\left[ \begin{array} { l l l }
• 1 & 1 & 1
• \end{array} \right] \cdot \left[ \begin{array} { l l l }
• 140 & 140 & 140 \\
• 290 & 290 & 230 \\
• 230 & 230 & 190
• \end{array} \right] \cdot \left[ \begin{array} { c }
• 1 \\
• 0 \\
• - 1
• \end{array} \right] = \left[ \begin{array} { c }
• 100
• \end{array} \right]\)
• D) \(\left[ \begin{array} { l l l }
• 1 & 0 & - 1
• \end{array} \right] \cdot \left[ \begin{array} { l l l }
• 140 & 140 & 140 \\
• 290 & 290 & 230 \\
• 230 & 230 & 190
• \end{array} \right] \cdot \left[ \begin{array} { l }
• 1 \\
• 0 \\
• 1
• \end{array} \right] = [ 80 ]\)
• E) \(\left[ \begin{array} { l l l }
• 1 & - 1 & 1
• \end{array} \right] \cdot \left[ \begin{array} { l l l }
• 140 & 140 & 140 \\
• 290 & 290 & 230 \\
• 230 & 230 & 190
• \end{array} \right] \cdot \left[ \begin{array} { c }
• 1 \\
• 0 \\
• - 1
• \end{array} \right] = [ 130 ]\)

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Definitions:

Cell

The smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.

Activator Protein

A positive regulatory protein that stimulates transcription when bound to DNA. Compare with repressor protein.

Positive Control

A genetic control system in which a regulatory protein binds to DNA, turning on transcription of a gene. Compare with negative control.

Operon

A functioning unit of DNA containing a cluster of genes under the control of a single promoter, found in prokaryotes and some viruses.