1. Find 4 12
LM2
6 4
MM
N4
OP
2 .
P
3PQ
6
LM24OP
[A] 96
MM PP
N42Q
2. Find 12 2
LM 8
[B] 48
MM
N24
LM3
1 3
MM
N3
3. Find 8 4
4. Find 7 3
[A] 77 24 144
[D] 80 66
LM36
[C] 6
MM
N3
LM72OP
[D] 30
MM PP
N9Q
OP
11 .
P
6 PQ
[B] 45 76
OP
22
P
6 QP
48
OP
10 .
P
2 PQ
1
LM136OP
[B] 44
MM PP
N 98 Q
[A] 136 44 98
LM 6
8 5
MM
N10
[C] 24 96 42
4
[A] 72 30 9
LM10
7 7
MM
N12
OP
24
P
18 PQ
24
LM80
[C] 28
MM
N84
OP
40
P
14 PQ
8
[D] 192 62
OP
6 .
P
8PQ
2
LM42
[B] 15
MM
N80
OP
18
P
64 PQ
14
LM 77 OP
[C] 24
MM PP
N144Q
[D] 137 96
LM11
3 1
MM
N8
5. Find 2 10
LM 24 OP
[A] 110
MM PP
N 60 Q
6. Find 3 11
OP
4 .
P
12PQ
7
[B] 24 110 60
LM5
5 9
MM
N7
7. Find 6 7
OP
8 .
P
5PQ
[B] 149 140
LM 4
Find 1 6 10 11
MM
N1
LM 4 3 OP
[A] 66 54
MM PP
N10 70Q
LM15
[C] 99
MM
N35
OP
88
P
25QP
[D] 42 187 60
OP
35
P
132 PQ
[D] 54 91 156
27
OP
5 .
P
11PQ
8
LM 54 OP
[B] 91
MM PP
N156Q
[A] 86 215
8.
[C] 56 90
OP
40
P
36PQ
14
9
LM 42 OP
[A] 187
MM PP
N 60 Q
LM1
12 8
MM
N2
LM22
[D] 10
MM
N24
LM 6
[C] 56
MM
N24
48
OP
9 .
P
7PQ
3
[B] 15 72 80
[C] 80 127
LM15OP
[D] 72
MM PP
N80Q
9. Find 10 12
LM 9
9 12
MM
N5
OP
7 .
P
1 PQ
11
LM210OP
[B] 216
MM PP
N 54 Q
[A] 210 216 54
10. Find 4 2
LM12
11 10
MM
N6
OP
12 .
P
10PQ
5
LM48
[B] 20
MM
N66
[A] 88 34 176
11. Find 8 12
LM12
11 4
MM
N3
OP
8 .
P
18PQ
12. Find 1 15
LM 6
18 18
MM
N5
OP
16 .
P
17PQ
LM11
2 13
MM
N16
OP
15 .
P
12QP
LM15
7 2
MM
N17
OP
12 .
P
11PQ
13. Find 13 19
14. Find 10 9
[C] 279 203
LM 90
[D] 144
MM
N 45
13
11
17
16
OP
24
P
110QP
20
[C] 134 154
LM 88 OP
[D] 34
MM PP
N176Q
OP
84
P
9 PQ
110
15. Find 19 6
LM13
3 9
MM
N14
OP
7 .
P
10PQ
16. Find 2 17
LM 5
12 10
MM
N6
OP
1 .
P
14PQ
17. Find 15 3
LM17
10 16
MM
N19
18. Find 17 9
LM16
13 4
MM
N14
19. Find 15 1
LM 4
17 17
MM
N5
OP
11 .
P
12PQ
LM 8
19 19
MM
N1
OP
18 .
P
16PQ
20. Find 16 11
1
18
OP
3 .
P
6PQ
2
OP
5 .
P
17PQ
12
15
10
21. Let A =
LM1 1OP , B = LM2
N1 7Q N0
OP , and C = LM 1
– 2Q
N– 1
22. Let A =
LM1 3OP , B = LM– 5 1OP , and C = LM 1 1OP . Find AC − CB.
N3 1Q N 0 5Q
N– 3 5Q
7
OP . Find AC − CB.
– 2Q
1
23. Let A =
LM1 5OP , B = LM3
N5 3Q N0
OP , and C = LM 1
– 3Q
N– 5
24. Let A =
LM1 2OP , B = LM– 1 2OP , and C = LM 1 1OP . Find AC − CB.
N2 2Q N 0 1Q
N– 2 1Q
25. Let A =
LM1 4OP , B = LM– 4 4OP , and C = LM 1 1OP . Find AC − CB.
N4 4Q N 0 4Q
N– 4 4Q
26. Let A =
LM 1
N– 3
27. Let A =
LM 1 – 1OP , B = LM5
N – 1 5 Q N0
OP , and C = LM1 1 OP . Find AC − CB.
– 5Q
N1 – 5Q
28. Let A =
LM 1
N– 5
–5
OP , B = LM1
– 8Q
N0
–8
29. Let A =
LM 1
N– 2
OP , B = LM2
– 9Q
N0
–9
OP , and C = LM1
– 2Q
N2
OP . Find AC − CB.
– 2Q
30. Let A =
LM 1
N– 4
–4
OP , and C = LM1
– 3Q
N4
OP . Find AC − CB.
– 3Q
3
OP , B = LM4
6Q
N0
–3
–2
OP , B = LM3
2Q
N0
OP . Find AC − CB.
– 3Q
OP , and C = LM1
– 4Q
N3
6
1
OP . Find AC − CB.
– 4Q
1
5
OP , and C = LM1 1 OP . Find AC − CB.
– 1Q
N5 – 1Q
2
1
1
31. The band and the cheerleading squad at a local school are ordering supplies. The supplies
they need are listed in the table.
Paint Paper Tape
Band
Cheerleaders
11
8
11
15
4
8
If a bottle of paint costs $5, a roll of paper costs $12, and a roll of tape costs $2, which of
the following shows the use of matrices to find the total cost of supplies for each group?
L11
[A] M
N8
L11
[C] M
N8
OPLM125OP = LM195OP
8Q M P N236Q
MN 2PQ
4O
195
P8Q 5 12 2 = LMN236OPQ
L11
[B] M
N8
L11
[D] M
N8
11 4
15
11
15
OPLM125OP = 431
8Q M P
MN 2PQ
4O
5 12 2 = 431
8PQ
11 4
15
11
15
32. The band and the cheerleading squad at a local school are ordering supplies. The supplies
they need are listed in the table.
Paint Paper Tape
Band
Cheerleaders
12
10
12
14
3
7
If a bottle of paint costs $5, a roll of paper costs $12, and a roll of tape costs $2, which of
the following shows the use of matrices to find the total cost of supplies for each group?
L12
[A] M
N10
12
LM12
N10
12
[C]
14
14
OP 5
7Q
12 2 = 442
OP 5
7Q
12 2 =
3
3
LM210OP
N232Q
L12
[B] M
N10
12
LM12
N10
12
[D]
14
14
OPLM125OP = LM210OP
7 Q M P N232Q
MN 2PQ
L 5O
3O M P
12 = 442
7 PQ M P
NM 2QP
3
33. The band and the cheerleading squad at a local school are ordering supplies. The supplies
they need are listed in the table.
Paint Paper Tape
Band
Cheerleaders
10
9
14
16
5
9
If a bottle of paint costs $5, a roll of paper costs $12, and a roll of tape costs $2, which of
the following shows the use of matrices to find the total cost of supplies for each group?
L10
[A] M
N9
L10
[C] M
N9
14
16
14
16
OPLM125OP = LM228OP
9Q M P N 255Q
MN 2PQ
5O
228
P9Q 5 12 2 = LMN255OPQ
L10
[B] M
N9
L10
[D] M
N9
5
14
16
14
16
OPLM125OP = 483
9Q M P
MN 2PQ
5O
5 12 2 = 483
9 PQ
5
34. The band and the cheerleading squad at a local school are ordering supplies. The supplies
they need are listed in the table.
Paint Paper Tape
Band
Cheerleaders
11
9
15
17
6
8
If a bottle of paint costs $5, a roll of paper costs $12, and a roll of tape costs $2, which of
the following shows the use of matrices to find the total cost of supplies for each group?
L11
[A] M
N9
[C]
LM11
N9
OP 5
8Q
12
OP 5
8Q
12 2 = 512
15 6
17
15 6
17
L247OP
2 =M
N265Q
L11
[B] M
N9
[D]
LM11
N9
OPLM125OP = 512
8Q M P
MN 2PQ
L 5O
6O M P L247O
12 =
8PQ M P MN 265PQ
NM 2QP
15 6
17
15
17
35. The band and the cheerleading squad at a local school are ordering supplies. The supplies
they need are listed in the table.
Paint Paper Tape
Band
Cheerleaders
12
10
13
16
4
9
If a bottle of paint costs $5, a roll of paper costs $12, and a roll of tape costs $2, which of
the following shows the use of matrices to find the total cost of supplies for each group?
LM12
N10
L12
[C] M
N10
[A]
OP 5 12 2 = LM224OP
9Q
N260Q
L 5O
4O M P
12 = 484
9PQ M P
MN 2PQ
13 4
16
13
16
LM12
N10
L12
[D] M
N10
[B]
OP 5 12 2 = 484
9Q
L 5O
4O M P L224O
12 =
9PQ M P MN 260PQ
MN 2PQ
13 4
16
13
16