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= 
56
45
 
B= 
2-4
52
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
34
21
 
B= 
2-2
51
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
46
33
 
B= 
1-1
52
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
26
23
 
B= 
3-2
55
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
14
41
 
B= 
3-1
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
33
23
 
B= 
4-1
55
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
15
33
 
B= 
3-4
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
35
24
 
B= 
2-4
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
15
45
 
B= 
4-3
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
53
34
 
B= 
1-3
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
56
45
 
B= 
2-4
52
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
56
45
 
B =  
2 -4
5 2
 

=  

2A = 2 
56
45
 
= 
1012
810
 

C = 2A + B

C = 
1012
810
 
+ 
2-4
52
 
= 
128
1312
 

C = 

 
128
1312
 

 



2)  

If

A= 
34
21
 
B= 
2-2
51
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 6
Answer: 9 Answer: 3


SOLUTION 1 :

 

 
A
 
=  
34
21
 
B =  
2 -2
5 1
 

=  

2A = 2 
34
21
 
= 
68
42
 

C = 2A + B

C = 
68
42
 
+ 
2-2
51
 
= 
86
93
 

C = 

 
86
93
 

 



3)  

If

A= 
46
33
 
B= 
1-1
52
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 11
Answer: 11 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
46
33
 
B =  
1 -1
5 2
 

=  

2A = 2 
46
33
 
= 
812
66
 

C = 2A + B

C = 
812
66
 
+ 
1-1
52
 
= 
911
118
 

C = 

 
911
118
 

 



4)  

If

A= 
26
23
 
B= 
3-2
55
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 10
Answer: 9 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
26
23
 
B =  
3 -2
5 5
 

=  

2A = 2 
26
23
 
= 
412
46
 

C = 2A + B

C = 
412
46
 
+ 
3-2
55
 
= 
710
911
 

C = 

 
710
911
 

 



5)  

If

A= 
14
41
 
B= 
3-1
45
 
Find the matric         C = 2A + B

C =


 
Answer: 5 Answer: 7
Answer: 12 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
14
41
 
B =  
3 -1
4 5
 

=  

2A = 2 
14
41
 
= 
28
82
 

C = 2A + B

C = 
28
82
 
+ 
3-1
45
 
= 
57
127
 

C = 

 
57
127
 

 



6)  

If

A= 
33
23
 
B= 
4-1
55
 
Find the matric         C = 2A + B

C =


 
Answer: 10 Answer: 5
Answer: 9 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
33
23
 
B =  
4 -1
5 5
 

=  

2A = 2 
33
23
 
= 
66
46
 

C = 2A + B

C = 
66
46
 
+ 
4-1
55
 
= 
105
911
 

C = 

 
105
911
 

 



7)  

If

A= 
15
33
 
B= 
3-4
45
 
Find the matric         C = 2A + B

C =


 
Answer: 5 Answer: 6
Answer: 10 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
15
33
 
B =  
3 -4
4 5
 

=  

2A = 2 
15
33
 
= 
210
66
 

C = 2A + B

C = 
210
66
 
+ 
3-4
45
 
= 
56
1011
 

C = 

 
56
1011
 

 



8)  

If

A= 
35
24
 
B= 
2-4
45
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 6
Answer: 8 Answer: 13


SOLUTION 1 :

 

 
A
 
=  
35
24
 
B =  
2 -4
4 5
 

=  

2A = 2 
35
24
 
= 
610
48
 

C = 2A + B

C = 
610
48
 
+ 
2-4
45
 
= 
86
813
 

C = 

 
86
813
 

 



9)  

If

A= 
15
45
 
B= 
4-3
54
 
Find the matric         C = 2A + B

C =


 
Answer: 6 Answer: 7
Answer: 13 Answer: 14


SOLUTION 1 :

 

 
A
 
=  
15
45
 
B =  
4 -3
5 4
 

=  

2A = 2 
15
45
 
= 
210
810
 

C = 2A + B

C = 
210
810
 
+ 
4-3
54
 
= 
67
1314
 

C = 

 
67
1314
 

 



10)  

If

A= 
53
34
 
B= 
1-3
41
 
Find the matric         C = 2A + B

C =


 
Answer: 11 Answer: 3
Answer: 10 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
53
34
 
B =  
1 -3
4 1
 

=  

2A = 2 
53
34
 
= 
106
68
 

C = 2A + B

C = 
106
68
 
+ 
1-3
41
 
= 
113
109
 

C = 

 
113
109