Determine Whether the Matrix Is in Row-Echelon Form And/or in Reduced

question 64

Multiple Choice

Determine whether the matrix is in row-echelon form and/or in reduced row-echelon form. $$\left[ \begin{array} { l l l l } 1 & 0 & 5 & 9 \\0 & 1 & 0 & 6 \\0 & 0 & 1 & 0\end{array} \right]$$

• A)The matrix is in reduced row-echelon form.
• B)The matrix is not in row-echelon form but is in reduced row-echelon form.
• C)The matrix is in row-echelon form but not in reduced row-echelon form.
• D)The matrix is not in row-echelon or in reduced-row echelon form.

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Definitions:

Manufacturing Overhead

All indirect costs associated with manufacturing a product, like utilities, maintenance, and salaries of support staff.

Assembly Department

A segment of a manufacturing firm where components are put together to form a finished product.

Departmental Predetermined Overhead Rates

The overhead rates assigned to specific departments based on estimated costs and activity levels, used for allocating overhead to products.

Machine-Hours

A measure of the amount of time a machine is operated in a given period, often used in manufacturing to allocate costs or set production schedules.