Evaluate the Determinant of the Matrix $\left[ \begin{array} { c c c } 0.3 & 0.4 & - 0.3 \\- 0.4 & 0.2 & - 0.4 \\- 0.7 & 0.2 & - 0.1\end{array} \right]$

question 86

Multiple Choice

Evaluate the determinant of the matrix. Expand by minors along the row or column that appears to make the computation easiest. Round your answer to three decimals places.
$\left[ \begin{array} { c c c } 0.3 & 0.4 & - 0.3 \\- 0.4 & 0.2 & - 0.4 \\- 0.7 & 0.2 & - 0.1\end{array} \right]$

• A) 0.117
• B) 0.096
• C) 0.25
• D) 0.072
• E) 0.075

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