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
34
 
B= 
4-3
43
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
24
21
 
B= 
1-4
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
44
21
 
B= 
2-1
24
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
56
35
 
B= 
2-4
52
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
63
22
 
B= 
4-2
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
46
25
 
B= 
3-3
31
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
65
35
 
B= 
4-1
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
24
21
 
B= 
3-1
25
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
14
24
 
B= 
1-2
22
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
23
32
 
B= 
3-1
23
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
55
34
 
B= 
4-3
43
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 7
Answer: 10 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
55
34
 
B =  
4 -3
4 3
 

=  

2A = 2 
55
34
 
= 
1010
68
 

C = 2A + B

C = 
1010
68
 
+ 
4-3
43
 
= 
147
1011
 

C = 

 
147
1011
 

 



2)  

If

A= 
24
21
 
B= 
1-4
54
 
Find the matric         C = 2A + B

C =


 
Answer: 5 Answer: 4
Answer: 9 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
24
21
 
B =  
1 -4
5 4
 

=  

2A = 2 
24
21
 
= 
48
42
 

C = 2A + B

C = 
48
42
 
+ 
1-4
54
 
= 
54
96
 

C = 

 
54
96
 

 



3)  

If

A= 
44
21
 
B= 
2-1
24
 
Find the matric         C = 2A + B

C =


 
Answer: 10 Answer: 7
Answer: 6 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
44
21
 
B =  
2 -1
2 4
 

=  

2A = 2 
44
21
 
= 
88
42
 

C = 2A + B

C = 
88
42
 
+ 
2-1
24
 
= 
107
66
 

C = 

 
107
66
 

 



4)  

If

A= 
56
35
 
B= 
2-4
52
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 8
Answer: 11 Answer: 12


SOLUTION 1 :

 

 
A
 
=  
56
35
 
B =  
2 -4
5 2
 

=  

2A = 2 
56
35
 
= 
1012
610
 

C = 2A + B

C = 
1012
610
 
+ 
2-4
52
 
= 
128
1112
 

C = 

 
128
1112
 

 



5)  

If

A= 
63
22
 
B= 
4-2
41
 
Find the matric         C = 2A + B

C =


 
Answer: 16 Answer: 4
Answer: 8 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
63
22
 
B =  
4 -2
4 1
 

=  

2A = 2 
63
22
 
= 
126
44
 

C = 2A + B

C = 
126
44
 
+ 
4-2
41
 
= 
164
85
 

C = 

 
164
85
 

 



6)  

If

A= 
46
25
 
B= 
3-3
31
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
46
25
 
B =  
3 -3
3 1
 

=  

2A = 2 
46
25
 
= 
812
410
 

C = 2A + B

C = 
812
410
 
+ 
3-3
31
 
= 
119
711
 

C = 

 
119
711
 

 



7)  

If

A= 
65
35
 
B= 
4-1
41
 
Find the matric         C = 2A + B

C =


 
Answer: 16 Answer: 9
Answer: 10 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
65
35
 
B =  
4 -1
4 1
 

=  

2A = 2 
65
35
 
= 
1210
610
 

C = 2A + B

C = 
1210
610
 
+ 
4-1
41
 
= 
169
1011
 

C = 

 
169
1011
 

 



8)  

If

A= 
24
21
 
B= 
3-1
25
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 7
Answer: 6 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
24
21
 
B =  
3 -1
2 5
 

=  

2A = 2 
24
21
 
= 
48
42
 

C = 2A + B

C = 
48
42
 
+ 
3-1
25
 
= 
77
67
 

C = 

 
77
67
 

 



9)  

If

A= 
14
24
 
B= 
1-2
22
 
Find the matric         C = 2A + B

C =


 
Answer: 3 Answer: 6
Answer: 6 Answer: 10


SOLUTION 1 :

 

 
A
 
=  
14
24
 
B =  
1 -2
2 2
 

=  

2A = 2 
14
24
 
= 
28
48
 

C = 2A + B

C = 
28
48
 
+ 
1-2
22
 
= 
36
610
 

C = 

 
36
610
 

 



10)  

If

A= 
23
32
 
B= 
3-1
23
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 5
Answer: 8 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
23
32
 
B =  
3 -1
2 3
 

=  

2A = 2 
23
32
 
= 
46
64
 

C = 2A + B

C = 
46
64
 
+ 
3-1
23
 
= 
75
87
 

C = 

 
75
87