Use Cramer S Rule to Solve the System of Equations $\left\{ \begin{array} { l } x + 2 y + 2 z = 7 \\2 x + y + 2 z = 6 \\2 x + 2 y + z = - 3\end{array} \right.$

question 182

Multiple Choice

Use Cramer s rule to solve the system of equations, if possible. $\left\{ \begin{array} { l } x + 2 y + 2 z = 7 \\2 x + y + 2 z = 6 \\2 x + 2 y + z = - 3\end{array} \right.$

• A) \(( - 3 , - 2,7 )\)
• B) \(( - 3,2 , - 7 )\)
• C) \(( 3 , - 2,7 )\)
• D) dependent
• E) inconsistent

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Definitions:

Normal Distribution

An equal-probability distribution around the mean, which shows that instances near the mean happen more frequently than instances far from the mean.

Normal Probability Distribution

A bell-shaped distribution that is symmetric about the mean, showing how random variables are distributed.

Continuous Probability Distribution

A probability distribution that assigns probabilities to a continuum of possible outcomes, often described by a probability density function.

Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of data values; an indicator of data spread or how spread out the data are.