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WorksheetsMatrices exam
Total questions: 19
Worksheet time: 38mins
Name
Class
Date
1.
Name the order of this matrix.
a)
3x1
b)
1x3
c)
3
d)
1
2.
You can multiply a 2X3 matrix by which matrix?
a)
2X2
b)
2X12
c)
3X12
d)
2X3
3.
Find the product of the two matrices.
a)
undefined
b)
-3 16
17 12
8 -10
17 12
8 -10
c)
3 12
-15 -8
-1 -3
-15 -8
-1 -3
4.
How many columns are in a 5 x 4 matrix?
a)
5
b)
4
c)
20
d)
9
5.
In Matrix R (pictured) what element is a23?
a)
8
b)
9.01
c)
6
d)
1
6.
Name the order of this matrix.
a)
6x2
b)
2x6
c)
12
d)
36
7.
Find the product of the two matrices.
a)
1 2
6 -8
6 -8
b)
-3 -5
-5 -11
-5 -11
c)
-2 8
-6 -12
-6 -12
d)
2 -3
5 -2
5 -2
8.
You can multiply a 6X2 matrix by which matrix?
a)
6X2
b)
2X12
c)
3X12
d)
6x3
9.
find: B*A
a)
47 30
9 5
9 5
b)
17 15
42 35
42 35
c)
10 25
7 1
7 1
d)
not possible because rows do not match columns
10.
These matrices are being multiplied. Determine the dimension/size of the new matrix.
a)
Can't multiply them
b)
4 x 2
c)
3 x 3
d)
4 x 3
11.
Find the product of the matrices.
a)
A
b)
B
c)
C
d)
D
12.
Find the product of the matrices.
a)
A
b)
B
c)
C
d)
D
13.
What is the name of each entry of a matrix?
a)
Row
b)
Element
c)
Dimension
d)
Numbers
14.
Perform scalar multiplication on the matrix
a)
A
b)
B
c)
C
d)
D
15.
Can the operation be performed?
a)
Yes
b)
No
c)
tomato
d)
Maybe
16.
Find the product of the two matrices.
a)
17 12
25 18
25 18
b)
8 9
12 6
12 6
c)
6 6
7 5
7 5
d)
12 10
10 12
10 12
17.
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?
A is a (4x33) matrix
B is a (33x1) matrix
What are the dimensions of the product of A times B?
a)
4x1
b)
4x33
c)
33x1
d)
Matrix does not exist
18.
After completing multiplying the two matrices together, what is the sum of highest value and lowest value inside of the resulting matrix?
a)
14
b)
13
c)
12
d)
11
19.
matrix A = 2 x 7,
matrix B = 7 x 2
Determine which of the following operations exist.
matrix B = 7 x 2
Determine which of the following operations exist.
a)
A + B
b)
AB
c)
BA
d)
ABt
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