Use a Graphing Calculator and the Method of Matrix Inverses $\begin{array}{l}(\log 2) x+(\ln 3) y+(\ln 5) z=4 \\(\ln 3) x+(\log 8) y+(\ln 10) z=11 \\(\log 23) x+(\ln 7) y+(\ln 4) z=15\end{array}$

question 489

Multiple Choice

Use a graphing calculator and the method of matrix inverses to Give five decimal places, if necessary.
- $\begin{array}{l}(\log 2) x+(\ln 3) y+(\ln 5) z=4 \\(\ln 3) x+(\log 8) y+(\ln 10) z=11 \\(\log 23) x+(\ln 7) y+(\ln 4) z=15\end{array}$

• A) \(\{ ( 4.12321,3.91519,1.27440 ) \}\)
• B) \(\{ ( 0.30103,9.0309,1.38629 ) \}\)
• C) \(\{ ( 9.25474,1.35236 , - 0.16880 ) \}\)
• D) \(\varnothing\)

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