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= 
43
32
 
B= 
4-2
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
24
42
 
B= 
3-2
51
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
54
32
 
B= 
4-1
44
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
36
34
 
B= 
1-1
34
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
55
44
 
B= 
3-3
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
44
33
 
B= 
4-3
21
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
24
23
 
B= 
4-4
25
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
46
41
 
B= 
3-3
34
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
53
31
 
B= 
3-3
44
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
35
33
 
B= 
2-2
34
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
43
32
 
B= 
4-2
45
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 4
Answer: 10 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
43
32
 
B =  
4 -2
4 5
 

=  

2A = 2 
43
32
 
= 
86
64
 

C = 2A + B

C = 
86
64
 
+ 
4-2
45
 
= 
124
109
 

C = 

 
124
109
 

 



2)  

If

A= 
24
42
 
B= 
3-2
51
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 6
Answer: 13 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
24
42
 
B =  
3 -2
5 1
 

=  

2A = 2 
24
42
 
= 
48
84
 

C = 2A + B

C = 
48
84
 
+ 
3-2
51
 
= 
76
135
 

C = 

 
76
135
 

 



3)  

If

A= 
54
32
 
B= 
4-1
44
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 7
Answer: 10 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
54
32
 
B =  
4 -1
4 4
 

=  

2A = 2 
54
32
 
= 
108
64
 

C = 2A + B

C = 
108
64
 
+ 
4-1
44
 
= 
147
108
 

C = 

 
147
108
 

 



4)  

If

A= 
36
34
 
B= 
1-1
34
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 11
Answer: 9 Answer: 12


SOLUTION 1 :

 

 
A
 
=  
36
34
 
B =  
1 -1
3 4
 

=  

2A = 2 
36
34
 
= 
612
68
 

C = 2A + B

C = 
612
68
 
+ 
1-1
34
 
= 
711
912
 

C = 

 
711
912
 

 



5)  

If

A= 
55
44
 
B= 
3-3
41
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 7
Answer: 12 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
55
44
 
B =  
3 -3
4 1
 

=  

2A = 2 
55
44
 
= 
1010
88
 

C = 2A + B

C = 
1010
88
 
+ 
3-3
41
 
= 
137
129
 

C = 

 
137
129
 

 



6)  

If

A= 
44
33
 
B= 
4-3
21
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 5
Answer: 8 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
44
33
 
B =  
4 -3
2 1
 

=  

2A = 2 
44
33
 
= 
88
66
 

C = 2A + B

C = 
88
66
 
+ 
4-3
21
 
= 
125
87
 

C = 

 
125
87
 

 



7)  

If

A= 
24
23
 
B= 
4-4
25
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 4
Answer: 6 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
24
23
 
B =  
4 -4
2 5
 

=  

2A = 2 
24
23
 
= 
48
46
 

C = 2A + B

C = 
48
46
 
+ 
4-4
25
 
= 
84
611
 

C = 

 
84
611
 

 



8)  

If

A= 
46
41
 
B= 
3-3
34
 
Find the matric         C = 2A + B

C =


 
Answer: 11 Answer: 9
Answer: 11 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
46
41
 
B =  
3 -3
3 4
 

=  

2A = 2 
46
41
 
= 
812
82
 

C = 2A + B

C = 
812
82
 
+ 
3-3
34
 
= 
119
116
 

C = 

 
119
116
 

 



9)  

If

A= 
53
31
 
B= 
3-3
44
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 3
Answer: 10 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
53
31
 
B =  
3 -3
4 4
 

=  

2A = 2 
53
31
 
= 
106
62
 

C = 2A + B

C = 
106
62
 
+ 
3-3
44
 
= 
133
106
 

C = 

 
133
106
 

 



10)  

If

A= 
35
33
 
B= 
2-2
34
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 8
Answer: 9 Answer: 10


SOLUTION 1 :

 

 
A
 
=  
35
33
 
B =  
2 -2
3 4
 

=  

2A = 2 
35
33
 
= 
610
66
 

C = 2A + B

C = 
610
66
 
+ 
2-2
34
 
= 
88
910
 

C = 

 
88
910