A System of Linear Equations and a Reduced Matrix for the System

question 188

Multiple Choice

A system of linear equations and a reduced matrix for the system are given. Use the reduced matrix to find the general solution of the ​
System, if one exists. ​

• A) ​, , for any real number z.
• B) ​ , , for any real number z.
• C) ​ , , for any real number z.
• D) ​ , , for any real number z.
• E) ​no solution

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Definitions:

Experimental Group

This is the group in an experiment that receives the variable being tested.

Control Group

In an experiment, the group that does not receive the treatment being tested, used as a benchmark to measure how the other tested subjects do.

Placebo Treatment

A simulated or otherwise medically ineffectual treatment given to deceive the recipient for psychological or experimental reasons.

Random Error

Variability in data that arises due to chance and affects measurements in unpredictable ways.