 MULTIPLYING MATRICES
2 years ago
hartmam
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Practice 19 QuestionsShow answers
• Question 1
900 seconds Q. Name the order of this matrix.
3x1
1x3
3
1
• Question 2
900 seconds
Q. You can multiply a 2X3 matrix by which matrix?
2X2
2X12
3X12
2X3
• Question 3
900 seconds Q. Find the product of the two matrices.
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-3   16
17   12
8   -10
3   12
-15  -8
-1   -3
• Question 4
900 seconds
Q. How many columns are in a 5 x 4 matrix?
5
4
20
9
• Question 5
900 seconds Q. In Matrix R (pictured) what element is a23?
8
9.01
6
1
• Question 6
900 seconds Q. Name the order of this matrix.
6x2
2x6
12
36
• Question 7
900 seconds Q. Find the product of the two matrices.
1   2
6   -8
-3   -5
-5   -11
-2     8
-6   -12
2  -3
5   -2
• Question 8
900 seconds
Q. You can multiply a 6X2 matrix by which matrix?
6X2
2X12
3X12
6x3
• Question 9
300 seconds Q. find: B*A
47     30
9     5
17     15
42     35
10     25
7     1
not possible because rows do not match columns
• Question 10
900 seconds Q. These matrices are being multiplied. Determine the dimension/size of the new matrix.
Can't multiply them
4  x  2
3  x  3
4  x  3
• Question 11
900 seconds Q. Find the product of the matrices.
A
B
C
D
• Question 12
900 seconds Q. Find the product of the matrices.
A
B
C
D
• Question 13
900 seconds
Q.

What is the name of each entry of a matrix?

Row

Element

Dimension

Numbers

• Question 14
900 seconds Q. Perform scalar multiplication on the matrix
A
B
C
D
• Question 15
900 seconds Q. Can the operation be performed?
Yes
No
tomato
Maybe
• Question 16
900 seconds Q. Find the product of the two matrices.
17   12
25   18
8   9
12   6
6   6
7   5
12   10
10   12
• Question 17
900 seconds
Q. Given matrices A & B:
A is a (4x33) matrix
B is a (33x1) matrix
What are the dimensions of the product of A times B?
4x1
4x33
33x1
Matrix does not exist
• Question 18
900 seconds Q. After completing multiplying the two matrices together, what is the sum of highest value and lowest value inside of the resulting matrix?
14
13
12
11
• Question 19
900 seconds
Q. matrix A = 2 x 7,
matrix B = 7 x 2
Determine which of the following operations exist.