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= 
24
25
 
B= 
2-4
52
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
66
34
 
B= 
2-1
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
16
31
 
B= 
1-2
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
63
45
 
B= 
2-1
25
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
56
21
 
B= 
3-3
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
44
43
 
B= 
1-2
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
24
25
 
B= 
3-1
44
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
34
23
 
B= 
3-3
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
13
41
 
B= 
1-2
42
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
34
42
 
B= 
1-3
35
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
24
25
 
B= 
2-4
52
 
Find the matric         C = 2A + B

C =


 
Answer: 6 Answer: 4
Answer: 9 Answer: 12


SOLUTION 1 :

 

 
A
 
=  
24
25
 
B =  
2 -4
5 2
 

=  

2A = 2 
24
25
 
= 
48
410
 

C = 2A + B

C = 
48
410
 
+ 
2-4
52
 
= 
64
912
 

C = 

 
64
912
 

 



2)  

If

A= 
66
34
 
B= 
2-1
45
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 11
Answer: 10 Answer: 13


SOLUTION 1 :

 

 
A
 
=  
66
34
 
B =  
2 -1
4 5
 

=  

2A = 2 
66
34
 
= 
1212
68
 

C = 2A + B

C = 
1212
68
 
+ 
2-1
45
 
= 
1411
1013
 

C = 

 
1411
1013
 

 



3)  

If

A= 
16
31
 
B= 
1-2
41
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
16
31
 
B =  
1 -2
4 1
 

=  

2A = 2 
16
31
 
= 
212
62
 

C = 2A + B

C = 
212
62
 
+ 
1-2
41
 
= 
310
103
 

C = 

 
310
103
 

 



4)  

If

A= 
63
45
 
B= 
2-1
25
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 5
Answer: 10 Answer: 15


SOLUTION 1 :

 

 
A
 
=  
63
45
 
B =  
2 -1
2 5
 

=  

2A = 2 
63
45
 
= 
126
810
 

C = 2A + B

C = 
126
810
 
+ 
2-1
25
 
= 
145
1015
 

C = 

 
145
1015
 

 



5)  

If

A= 
56
21
 
B= 
3-3
54
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
56
21
 
B =  
3 -3
5 4
 

=  

2A = 2 
56
21
 
= 
1012
42
 

C = 2A + B

C = 
1012
42
 
+ 
3-3
54
 
= 
139
96
 

C = 

 
139
96
 

 



6)  

If

A= 
44
43
 
B= 
1-2
41
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 6
Answer: 12 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
44
43
 
B =  
1 -2
4 1
 

=  

2A = 2 
44
43
 
= 
88
86
 

C = 2A + B

C = 
88
86
 
+ 
1-2
41
 
= 
96
127
 

C = 

 
96
127
 

 



7)  

If

A= 
24
25
 
B= 
3-1
44
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
24
25
 
B =  
3 -1
4 4
 

=  

2A = 2 
24
25
 
= 
48
410
 

C = 2A + B

C = 
48
410
 
+ 
3-1
44
 
= 
77
814
 

C = 

 
77
814
 

 



8)  

If

A= 
34
23
 
B= 
3-3
32
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 5
Answer: 7 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
34
23
 
B =  
3 -3
3 2
 

=  

2A = 2 
34
23
 
= 
68
46
 

C = 2A + B

C = 
68
46
 
+ 
3-3
32
 
= 
95
78
 

C = 

 
95
78
 

 



9)  

If

A= 
13
41
 
B= 
1-2
42
 
Find the matric         C = 2A + B

C =


 
Answer: 3 Answer: 4
Answer: 12 Answer: 4


SOLUTION 1 :

 

 
A
 
=  
13
41
 
B =  
1 -2
4 2
 

=  

2A = 2 
13
41
 
= 
26
82
 

C = 2A + B

C = 
26
82
 
+ 
1-2
42
 
= 
34
124
 

C = 

 
34
124
 

 



10)  

If

A= 
34
42
 
B= 
1-3
35
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 5
Answer: 11 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
34
42
 
B =  
1 -3
3 5
 

=  

2A = 2 
34
42
 
= 
68
84
 

C = 2A + B

C = 
68
84
 
+ 
1-3
35
 
= 
75
119
 

C = 

 
75
119