Solve the System Using Matrices $$\begin{array} { l } 5 x + 4 y = 32 \\- 9 x + 7 y = - 86\end{array}$$

question 58

Multiple Choice

Solve the system using matrices.
- $$\begin{array} { l } 5 x + 4 y = 32 \\- 9 x + 7 y = - 86\end{array}$$

• A)(7, -1)
• B)(8, -2)
• C)(-8, -1)
• D)inconsistent system

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Definitions:

Chronological Age

The actual age of an individual measured in years from the date of birth to the current date.

Charles Spearman

An early 20th-century psychologist who is best known for his work in intelligence, including the theory that a general intelligence factor underlies all cognitive abilities.

Intelligence

The skill to grasp, interpret, and employ data, tackle issues, and adapt to changes in circumstances.

Charles Spearman

A British psychologist known for his work in statistics and intelligence theory, notably for his proposal of the g factor, or general intelligence.