Introduction to Matrices Answers
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1
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1.
A
AB
BC
CD
D2
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2.
A
AB
BC
CD
D3
Which rectangle represents the result of the matrix multiplication?
A
OptionB
Option4
a = b = c =
Answer:
5
5
d12 =
Answer:
-27
6
What is the calculation to find c?
A
(1)(1) + (0)(–1) + (1)(3)B
(1)(–2) + (0)(2) + (1)(4)C
(2)(1) + (–1)(–1) + (3)(3)D
(2)(–1) + (–1)(2) + (3)(4)7
d21 =
Answer:
-57
8
d22 =
Answer:
-171
9
d23 =
Answer:
-285
10
a =
Answer:
48
11
3.
A
AB
BC
CD
D12
Which of the following matrix multiplications are possible?
A
OptionB
OptionC
Option13
Question text not available
Answer:
2
14
a = (1 × 1 + 0 × –1 + 1 × )
Answer:
3
15
a =
Answer:
4
16
:
A
1 x 3B
3 x 3C
3 x 117
a =
Answer:
3
18
What are the coordinates of the reflected rectangle?
A
(0,0), (3,0), (0, –2)B
(0, 0), (0, 3), (–2, 0)C
(0, 0), (–3, 0), (–2, 0)D
(0, 0), (0, –3), (0, –2)19
What are the values for matrix A?:
A
OptionB
OptionC
Option20
c11 = c12 = −2
Answer:
-2
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