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Use a Graphing Calculator and the Method of Matrix Inverses x2y=3.72.85x+y=8.23\begin{array} { l } x - \sqrt { 2 } y = 3.7 \\2.85 x + y = - 8.23\end{array}

Question 351

Multiple Choice

Use a graphing calculator and the method of matrix inverses to Give five decimal places, if necessary.
- x2y=3.72.85x+y=8.23\begin{array} { l } x - \sqrt { 2 } y = 3.7 \\2.85 x + y = - 8.23\end{array}


A) {(3.43297,0.18882) }\{ ( 3.43297,0.18882 ) \}
B) {(1.57817,3.73223) }\{ ( - 1.57817 , - 3.73223 ) \}
C) {(2.61630,2.88772) }\{ ( 2.61630 , - 2.88772 ) \}
D) {(0,0) }\{ ( 0,0 ) \}

Correct Answer:

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