Scroll:matrices >> Solve an equation >> ps (4140)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

If

A= 
55
31
 
B= 
3-4
33
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
13
31
 
B= 
2-2
23
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
14
22
 
B= 
2-3
42
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
33
32
 
B= 
4-4
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
56
45
 
B= 
2-3
33
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
56
42
 
B= 
2-3
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
45
23
 
B= 
1-3
53
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
15
41
 
B= 
2-4
34
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
63
42
 
B= 
1-3
53
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
54
31
 
B= 
4-2
43
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
55
31
 
B= 
3-4
33
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 6
Answer: 9 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
55
31
 
B =  
3 -4
3 3
 

=  

2A = 2 
55
31
 
= 
1010
62
 

C = 2A + B

C = 
1010
62
 
+ 
3-4
33
 
= 
136
95
 

C = 

 
136
95
 

 



2)  

If

A= 
13
31
 
B= 
2-2
23
 
Find the matric         C = 2A + B

C =


 
Answer: 4 Answer: 4
Answer: 8 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
13
31
 
B =  
2 -2
2 3
 

=  

2A = 2 
13
31
 
= 
26
62
 

C = 2A + B

C = 
26
62
 
+ 
2-2
23
 
= 
44
85
 

C = 

 
44
85
 

 



3)  

If

A= 
14
22
 
B= 
2-3
42
 
Find the matric         C = 2A + B

C =


 
Answer: 4 Answer: 5
Answer: 8 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
14
22
 
B =  
2 -3
4 2
 

=  

2A = 2 
14
22
 
= 
28
44
 

C = 2A + B

C = 
28
44
 
+ 
2-3
42
 
= 
45
86
 

C = 

 
45
86
 

 



4)  

If

A= 
33
32
 
B= 
4-4
54
 
Find the matric         C = 2A + B

C =


 
Answer: 10 Answer: 2
Answer: 11 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
33
32
 
B =  
4 -4
5 4
 

=  

2A = 2 
33
32
 
= 
66
64
 

C = 2A + B

C = 
66
64
 
+ 
4-4
54
 
= 
102
118
 

C = 

 
102
118
 

 



5)  

If

A= 
56
45
 
B= 
2-3
33
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 9
Answer: 11 Answer: 13


SOLUTION 1 :

 

 
A
 
=  
56
45
 
B =  
2 -3
3 3
 

=  

2A = 2 
56
45
 
= 
1012
810
 

C = 2A + B

C = 
1012
810
 
+ 
2-3
33
 
= 
129
1113
 

C = 

 
129
1113
 

 



6)  

If

A= 
56
42
 
B= 
2-3
54
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 9
Answer: 13 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
56
42
 
B =  
2 -3
5 4
 

=  

2A = 2 
56
42
 
= 
1012
84
 

C = 2A + B

C = 
1012
84
 
+ 
2-3
54
 
= 
129
138
 

C = 

 
129
138
 

 



7)  

If

A= 
45
23
 
B= 
1-3
53
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 7
Answer: 9 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
45
23
 
B =  
1 -3
5 3
 

=  

2A = 2 
45
23
 
= 
810
46
 

C = 2A + B

C = 
810
46
 
+ 
1-3
53
 
= 
97
99
 

C = 

 
97
99
 

 



8)  

If

A= 
15
41
 
B= 
2-4
34
 
Find the matric         C = 2A + B

C =


 
Answer: 4 Answer: 6
Answer: 11 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
15
41
 
B =  
2 -4
3 4
 

=  

2A = 2 
15
41
 
= 
210
82
 

C = 2A + B

C = 
210
82
 
+ 
2-4
34
 
= 
46
116
 

C = 

 
46
116
 

 



9)  

If

A= 
63
42
 
B= 
1-3
53
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 3
Answer: 13 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
63
42
 
B =  
1 -3
5 3
 

=  

2A = 2 
63
42
 
= 
126
84
 

C = 2A + B

C = 
126
84
 
+ 
1-3
53
 
= 
133
137
 

C = 

 
133
137
 

 



10)  

If

A= 
54
31
 
B= 
4-2
43
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 6
Answer: 10 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
54
31
 
B =  
4 -2
4 3
 

=  

2A = 2 
54
31
 
= 
108
62
 

C = 2A + B

C = 
108
62
 
+ 
4-2
43
 
= 
146
105
 

C = 

 
146
105