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= 
14
43
 
B= 
1-1
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
16
41
 
B= 
3-2
24
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
35
32
 
B= 
3-1
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
64
43
 
B= 
3-1
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
35
22
 
B= 
4-2
21
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
55
22
 
B= 
4-1
31
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
34
32
 
B= 
4-1
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
64
31
 
B= 
1-2
24
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
65
41
 
B= 
2-3
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
53
23
 
B= 
1-3
33
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
14
43
 
B= 
1-1
45
 
Find the matric         C = 2A + B

C =


 
Answer: 3 Answer: 7
Answer: 12 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
14
43
 
B =  
1 -1
4 5
 

=  

2A = 2 
14
43
 
= 
28
86
 

C = 2A + B

C = 
28
86
 
+ 
1-1
45
 
= 
37
1211
 

C = 

 
37
1211
 

 



2)  

If

A= 
16
41
 
B= 
3-2
24
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
16
41
 
B =  
3 -2
2 4
 

=  

2A = 2 
16
41
 
= 
212
82
 

C = 2A + B

C = 
212
82
 
+ 
3-2
24
 
= 
510
106
 

C = 

 
510
106
 

 



3)  

If

A= 
35
32
 
B= 
3-1
45
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
35
32
 
B =  
3 -1
4 5
 

=  

2A = 2 
35
32
 
= 
610
64
 

C = 2A + B

C = 
610
64
 
+ 
3-1
45
 
= 
99
109
 

C = 

 
99
109
 

 



4)  

If

A= 
64
43
 
B= 
3-1
45
 
Find the matric         C = 2A + B

C =


 
Answer: 15 Answer: 7
Answer: 12 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
64
43
 
B =  
3 -1
4 5
 

=  

2A = 2 
64
43
 
= 
128
86
 

C = 2A + B

C = 
128
86
 
+ 
3-1
45
 
= 
157
1211
 

C = 

 
157
1211
 

 



5)  

If

A= 
35
22
 
B= 
4-2
21
 
Find the matric         C = 2A + B

C =


 
Answer: 10 Answer: 8
Answer: 6 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
35
22
 
B =  
4 -2
2 1
 

=  

2A = 2 
35
22
 
= 
610
44
 

C = 2A + B

C = 
610
44
 
+ 
4-2
21
 
= 
108
65
 

C = 

 
108
65
 

 



6)  

If

A= 
55
22
 
B= 
4-1
31
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 9
Answer: 7 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
55
22
 
B =  
4 -1
3 1
 

=  

2A = 2 
55
22
 
= 
1010
44
 

C = 2A + B

C = 
1010
44
 
+ 
4-1
31
 
= 
149
75
 

C = 

 
149
75
 

 



7)  

If

A= 
34
32
 
B= 
4-1
41
 
Find the matric         C = 2A + B

C =


 
Answer: 10 Answer: 7
Answer: 10 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
34
32
 
B =  
4 -1
4 1
 

=  

2A = 2 
34
32
 
= 
68
64
 

C = 2A + B

C = 
68
64
 
+ 
4-1
41
 
= 
107
105
 

C = 

 
107
105
 

 



8)  

If

A= 
64
31
 
B= 
1-2
24
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
64
31
 
B =  
1 -2
2 4
 

=  

2A = 2 
64
31
 
= 
128
62
 

C = 2A + B

C = 
128
62
 
+ 
1-2
24
 
= 
136
86
 

C = 

 
136
86
 

 



9)  

If

A= 
65
41
 
B= 
2-3
32
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 7
Answer: 11 Answer: 4


SOLUTION 1 :

 

 
A
 
=  
65
41
 
B =  
2 -3
3 2
 

=  

2A = 2 
65
41
 
= 
1210
82
 

C = 2A + B

C = 
1210
82
 
+ 
2-3
32
 
= 
147
114
 

C = 

 
147
114
 

 



10)  

If

A= 
53
23
 
B= 
1-3
33
 
Find the matric         C = 2A + B

C =


 
Answer: 11 Answer: 3
Answer: 7 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
53
23
 
B =  
1 -3
3 3
 

=  

2A = 2 
53
23
 
= 
106
46
 

C = 2A + B

C = 
106
46
 
+ 
1-3
33
 
= 
113
79
 

C = 

 
113
79