Solve Using Cramer's Rule, If Possible $$\left\{ \begin{array} { l } 4 x - 4 y - 4 z = - 20 \\- 8 x + 3 y - 3 z = - 68 \\- 7 x - 7 y - 5 z = - 117\end{array} \right.$$

question 88

Multiple Choice

Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many
solutions.
- $$\left\{ \begin{array} { l } 4 x - 4 y - 4 z = - 20 \\- 8 x + 3 y - 3 z = - 68 \\- 7 x - 7 y - 5 z = - 117\end{array} \right.$$

• A) \(( 8,2,8 )\)
• B) \(( 7,4,8 )\)
• C) \(( 7 , - 4 , - 8 )\)
• D) \(( 4,8,4 )\)

Understand how variance analysis is used for control purposes and to highlight areas for corrective action.

Evaluate the motivational effects of standard cost systems on employee behavior.

Comprehend the use of product costs in financial and management accounting.

Recognize the significance of significant and insignificant variances and the need for managerial investigation.

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