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- 1. Multiple Choice
In Matrix R (pictured) what element is in the second row, third column?89.0161 - 2. Multiple ChoiceWhat comes first in the order?RowColumn
- 3. Multiple ChoiceWhat 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.
- 4. Multiple ChoiceYou can multiply a 2X3 matrix by which matrix?2X22X123X122X3
- 5. Multiple ChoiceFind A+B8 10
8 112 25
7 110 30
0 1can't add two together because the rows dont match columns - 6. Multiple ChoiceWhat do w, x, y and z equal in this matrix subtraction?w = 13, x = 4, y = 7, z = 23w = 13, x = -4, y = 11, z = 23w = 13, x = 4, y = 11, z = 23w = 13, x = 4, y = 11, z = 17
- 7. Multiple ChoiceWhat are the dimensions of this matrix?2 x 33 x 26 x 11 x 6
- 8. Multiple Choicefind: B*A47 30
9 517 15
42 3510 25
7 1not possible because rows do not match columns - 9. Multiple ChoiceSubtract-5
-8
3
10-9
8
3
25
-8
3
10-5
8
3
2 - 10. Multiple ChoiceSubtract (ignore the fact that I couldn't put matrix brackets in the answers)3 -8
0 -13 -4
8 -13-3 8
0 13 -8
-8 1 - 11. Multiple ChoiceDimensions?abcd
- 12. Multiple ChoiceWhat do m, n, p and q equal in this scalar matrix multiplication?m=8, n=9, p=-4, q=4m=15, n = -45, p=20, q=-5m=20, n=-5, p=15, q=-45m=-5, n=20, p=-45, q=15
- 13. Multiple ChoiceDetermine whether each matrix product is defined. If so, what are the dimensions of the product.
A2x3 B2x5noyes, 2 x 5yes , 3 x 5yes , 2 x 3 - 14. Multiple ChoiceMultiply20 15 -10
30 -5 0-20 15 -10
30 -5 01 8 3
11 4 520 -15 10
-30 5 0 - 15. Multiple ChoiceMultiply1 2
6 -8-3 -5
-5 -11-2 8
-6 -122 -3
5 -2 - 16. Multiple ChoiceABCD
- 17. Multiple ChoiceFind the product.undefined-3 16
17 12
8 -103 12
-15 -8
-1 -3 - Answer choicesTagsAnswer choicesTags