Solve the System $$\left\{ \begin{array} { l } 4 x - 7 y = 8 \\4 x - 7 y = - 5\end{array} \right.$$

question 19

Multiple Choice

Solve the system.
- $$\left\{ \begin{array} { l } 4 x - 7 y = 8 \\4 x - 7 y = - 5\end{array} \right.$$

• A) \(\left( \frac { 8 } { 7 } , - \frac { 5 } { 4 } \right)\)
• B) inconsistent (no solution)
• C) \(( 8 , - 5 )\)
• D) consistent (many solutions)

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Definitions:

Standard Deviation

A statistic that measures the dispersion or variability of a dataset relative to its mean, indicating how spread out the data points are.

Normally Distributed

Describes a distribution of data that forms a bell-shaped curve, symmetrical about its mean, implying that mean, median, and mode are equal.

Weight Loss

The reduction of total body mass due to efforts to improve fitness and health, or to change appearance through slimming.

Standard Normal

A normal distribution with a mean of zero and a standard deviation of one, commonly used in probability theory and statistics.