Questions

1) What is the determinant of the matrix?

a.) 2

b.) 0

c.) –2

d.) 1

e.) 4

2) Does the matrix have an inverse?

a.) Yes

b.) No

3) What is the determinant of the matrix?

a.) –7

b.) 0

c.) 7

d.) 1

e.) –1

4) Does the matrix have an inverse?

a.) Yes

b.) No

5) What is the determinant of the matrix?

a.) –6

b.) 0

c.) 6

d.) 1

e.) 3

6) Does the matrix have an inverse?

a.) Yes

b.) No

7) What is the determinant of the matrix?

a.) –10

b.) 0

c.) 10

d.) 1

e.) 20

8) Does the matrix have an inverse?

a.) Yes

b.) No

9) Are the matrices inverses of each other?

a.) Yes, inverses.

b.) No, not inverses.

10) Are the matrices inverses of each other?

a.) Yes, inverses.

b.) No, not inverses.

11) Determinant = ?

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12) Inverse Matrix = ?

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13) Determinant = ?

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14) Inverse Matrix = ?

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15) State the letter of the matrix equation that matches the given system.

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16) State the letter of the matrix equation that matches the given system.

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17) State the letter of the matrix equation that matches the given system.

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18) State the letter of the matrix equation that matches the given system.

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19) Solve

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20) Solve.

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21) Does Matrix [A] have a determinant?

a.) Yes, has determinant.

b.) No, does not have a determinant.

22) Does Matrix [B] have a determinant?

a.) Yes, has a determinant.

b.) No, does not have a determinant.

23) Does Matrix [C] have a determinant?

a.) Yes, has a determinant.

b.) No, does not have a determinant.

24) The system below can be represented by a matrix equation. What are the dimensions of the coefficient matrix? State the letter of the correct answer.

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25) What is the solution for "x" in problem #15?

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26) What is the solution for "y" in problem #15?

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27) What is the solution for "z" in problem #15?

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28) What is the solution for "x" in problem #16?

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29) What is the solution for "y" in problem #16?

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30) What is the solution for "z" in problem #16?

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31) What is the solution for "x" in problem #17?

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32) What is the solution for "y" in problem #17?

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33) What is the solution for "z" in problem #17?

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34) What is the solution for "x" in problem #18?

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35) What is the solution for "y" in problem #18?

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36) What is the solution for "z" in problem #18?

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