Algebra 2 Worksheet
CW#8 Algebra 2 Worksheet Name: _________________________
Combo Period: ______
I. Find each determinant.
|1. [pic] by hand |2. [pic] by calc |3. [pic] by calc. |
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II. Find the inverse of each matrix, if it exists.
|4. [pic] by hand |5. [pic]by hand |6. [pic]by calculator |
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III. Solve. each matrix equation.
|7. Solve the matrix equation. |8. Solve the system using inverse matrices. |
|[pic] |[pic] |
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IV. Word Problem. Write a system. Solve the system using inverse matrices.
|9. A cashier has 75 five- and ten- dollar bills with a value of $595. How many of each denomination bill does she have? |
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|10. A theater has tickets at $6 for adults, $3.50 for students, and $2.50 for children under 12. A total of 330 tickets were sold for one showing with|
|a total revenue of $1590. If the number of adult tickets sold was 10 less than twice the number of student ticket, how many of each type of ticket were|
|sold for the showing? |
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11. Write the system of inequalities for the graph.
[pic]
12. Maximize [pic]
[pic] Maximum amount _____________ At [pic]
[pic]
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