Matrices Operations
3 minutes ago
akridge
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• Question 1
120 seconds
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11    8
-4     2
3     2
-6    -6
-3    2
-4    -6
10    8
-6    2
• Question 2
120 seconds
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Q. Subtract
-5
-8
3
10
-9
8
3
2
5
-8
3
10
-5
8
3
2
• Question 3
120 seconds
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Q. Find A-B
-3     1
7     -1
1     0
1     -4
-4       0
6     -1
not possible because rows do not match columns
• Question 4
45 seconds
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Q. What are the dimensions of this matrix?
2 x 3
3 x 2
6 x 1
1 x 6
• Question 5
30 seconds
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Q. What comes first in the order?
Row
Column
• Question 6
120 seconds
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Q. Multiply
20     15    -10
30     -5         0
-20      15     -10
30     -5          0
1        8       3
11     4        5
20     -15     10
-30         5        0
• Question 7
120 seconds
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Q. Multiply
25
25
5
-25
25
-5
-10
-10
-6
10
10
6
• Question 8
45 seconds
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Q. Can the operation be performed?
Yes
No
Sometimes
only Mrs. Jordan knows
• Question 9
30 seconds
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Q. What are the dimensions of this matrix?
3x1
1x3
3x3
1x1
• Question 10
45 seconds
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Q. What must be true in order to ADD two matrices?
They must be square.
The dimensions must be equal.
The determinant can't equal 0.
The column of the 1st must equal the row of the 2nd.
• Question 11
120 seconds
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Q. Find B-A
-3     1
7     -1
1     0
1     -4
-4       0
6     -1
not possible because rows do not match columns
• Question 12
60 seconds
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Q. In Matrix R (pictured) what element is in the second row, third column?
8
9.01
6
1
• Question 13
30 seconds
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Q. How many rows are in a 7 x 3 matrix?
7
3
21
10
• Question 14
30 seconds
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Q. How many columns are in a 5 x 4 matrix?
5
4
20
9
• Question 15
30 seconds
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Q. Subtract