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= 
45
31
 
B= 
2-4
44
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
25
31
 
B= 
4-3
44
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
16
41
 
B= 
4-3
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
35
43
 
B= 
4-1
51
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
64
42
 
B= 
4-2
44
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
33
31
 
B= 
3-3
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
23
43
 
B= 
3-1
31
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
34
24
 
B= 
2-3
21
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
63
21
 
B= 
1-2
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
14
34
 
B= 
4-1
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
45
31
 
B= 
2-4
44
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
45
31
 
B =  
2 -4
4 4
 

=  

2A = 2 
45
31
 
= 
810
62
 

C = 2A + B

C = 
810
62
 
+ 
2-4
44
 
= 
106
106
 

C = 

 
106
106
 

 



2)  

If

A= 
25
31
 
B= 
4-3
44
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 7
Answer: 10 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
25
31
 
B =  
4 -3
4 4
 

=  

2A = 2 
25
31
 
= 
410
62
 

C = 2A + B

C = 
410
62
 
+ 
4-3
44
 
= 
87
106
 

C = 

 
87
106
 

 



3)  

If

A= 
16
41
 
B= 
4-3
41
 
Find the matric         C = 2A + B

C =


 
Answer: 6 Answer: 9
Answer: 12 Answer: 3


SOLUTION 1 :

 

 
A
 
=  
16
41
 
B =  
4 -3
4 1
 

=  

2A = 2 
16
41
 
= 
212
82
 

C = 2A + B

C = 
212
82
 
+ 
4-3
41
 
= 
69
123
 

C = 

 
69
123
 

 



4)  

If

A= 
35
43
 
B= 
4-1
51
 
Find the matric         C = 2A + B

C =


 
Answer: 10 Answer: 9
Answer: 13 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
35
43
 
B =  
4 -1
5 1
 

=  

2A = 2 
35
43
 
= 
610
86
 

C = 2A + B

C = 
610
86
 
+ 
4-1
51
 
= 
109
137
 

C = 

 
109
137
 

 



5)  

If

A= 
64
42
 
B= 
4-2
44
 
Find the matric         C = 2A + B

C =


 
Answer: 16 Answer: 6
Answer: 12 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
64
42
 
B =  
4 -2
4 4
 

=  

2A = 2 
64
42
 
= 
128
84
 

C = 2A + B

C = 
128
84
 
+ 
4-2
44
 
= 
166
128
 

C = 

 
166
128
 

 



6)  

If

A= 
33
31
 
B= 
3-3
45
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 3
Answer: 10 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
33
31
 
B =  
3 -3
4 5
 

=  

2A = 2 
33
31
 
= 
66
62
 

C = 2A + B

C = 
66
62
 
+ 
3-3
45
 
= 
93
107
 

C = 

 
93
107
 

 



7)  

If

A= 
23
43
 
B= 
3-1
31
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 5
Answer: 11 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
23
43
 
B =  
3 -1
3 1
 

=  

2A = 2 
23
43
 
= 
46
86
 

C = 2A + B

C = 
46
86
 
+ 
3-1
31
 
= 
75
117
 

C = 

 
75
117
 

 



8)  

If

A= 
34
24
 
B= 
2-3
21
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 5
Answer: 6 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
34
24
 
B =  
2 -3
2 1
 

=  

2A = 2 
34
24
 
= 
68
48
 

C = 2A + B

C = 
68
48
 
+ 
2-3
21
 
= 
85
69
 

C = 

 
85
69
 

 



9)  

If

A= 
63
21
 
B= 
1-2
54
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 4
Answer: 9 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
63
21
 
B =  
1 -2
5 4
 

=  

2A = 2 
63
21
 
= 
126
42
 

C = 2A + B

C = 
126
42
 
+ 
1-2
54
 
= 
134
96
 

C = 

 
134
96
 

 



10)  

If

A= 
14
34
 
B= 
4-1
45
 
Find the matric         C = 2A + B

C =


 
Answer: 6 Answer: 7
Answer: 10 Answer: 13


SOLUTION 1 :

 

 
A
 
=  
14
34
 
B =  
4 -1
4 5
 

=  

2A = 2 
14
34
 
= 
28
68
 

C = 2A + B

C = 
28
68
 
+ 
4-1
45
 
= 
67
1013
 

C = 

 
67
1013