Quiz about Multiplying Matrices

Question 1

Question 1.

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 2

Question 2.

Accepted Answer

Option B is correct

Answer

undefined

Answer

C.

Answer

D.

Question 3

Question 3.

Accepted Answer

Row 1 : -18, 12, 6
Row 2 : 42, 48, -30
Row 3 : 24, 36, -54

Answer

Row 1 : 18, -12, -6
Row 2 : -42, -48, 30
Row 3 : -24, -36, 54

Answer

Row 1 : 6, 18, 12
Row 2 : 30, 42, 48
Row 3 : 54, 36, 24

Answer

Row 1 : 18, 12, 6
Row 2 : 42, 48, 30
Row 3 : 24, 36, 54

Question 4

Find -3A

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

Does Not Exist

Question 5

Question 5.

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 6

Bonus Point! 3A=?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 7

Perform the indicated matrix operation.

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

Not possible.

Question 8

If N = [[-3, 3], [-2, 2]] and t = -1, what is the result of tN?

Accepted Answer

[[3, -3], [2, -2]]

Answer

[[-3, 3], [-2, 2]]

Answer

[[1, -1], [1, -1]]

Answer

[[0, 0], [0, 0]]

Question 9

How do you multiply a scalar into a matrix?

Accepted Answer

Multiply all of the entries by the scalar

Answer

Replace every entry with the scalar

Answer

Add the square of it to all of the entries

Answer

Multiply the first row by the scalar

Question 10

Question 10.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Answer

E

Question 11

Question 11.

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Answer

It is not possible.

Question 12

Question 12.

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 13

Hint; which of the following multiplications is possible?

Accepted Answer

BA

Answer

Answer

AB

Answer

BC

Answer

Question 14

Question 14.

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Answer

E

Question 15

Given matrices A & B: A is a (4 X 5) matrix B is a (5 X 1) matrix What are the dimensions of the product of A times B?

Accepted Answer

4x1

Answer

4x33

Answer

33x1

Answer

Matrix does not exist

Question 16

Question 16.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 17

What are the dimensions of this matrix?

Accepted Answer

3 x 2

Answer

2 x 3

Answer

6 x 1

Answer

1 x 6

Question 18

Multiply

Accepted Answer

-3 -5
-5 -11

Answer

1 2 6 -8

Answer

-2 8
-6 -12

Answer

2 -3 5 -2

Multiplying Matrices

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