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
34
 
B= 
4-4
31
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
16
25
 
B= 
1-1
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
64
45
 
B= 
1-4
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

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

C =


 


Answer:_______________




5)  

If

A= 
65
25
 
B= 
3-1
52
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
25
22
 
B= 
3-3
35
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
44
21
 
B= 
1-4
34
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
23
25
 
B= 
2-1
33
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
46
45
 
B= 
1-2
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
24
44
 
B= 
1-1
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
43
34
 
B= 
4-4
31
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 2
Answer: 9 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
43
34
 
B =  
4 -4
3 1
 

=  

2A = 2 
43
34
 
= 
86
68
 

C = 2A + B

C = 
86
68
 
+ 
4-4
31
 
= 
122
99
 

C = 

 
122
99
 

 



2)  

If

A= 
16
25
 
B= 
1-1
32
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
16
25
 
B =  
1 -1
3 2
 

=  

2A = 2 
16
25
 
= 
212
410
 

C = 2A + B

C = 
212
410
 
+ 
1-1
32
 
= 
311
712
 

C = 

 
311
712
 

 



3)  

If

A= 
64
45
 
B= 
1-4
45
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 4
Answer: 12 Answer: 15


SOLUTION 1 :

 

 
A
 
=  
64
45
 
B =  
1 -4
4 5
 

=  

2A = 2 
64
45
 
= 
128
810
 

C = 2A + B

C = 
128
810
 
+ 
1-4
45
 
= 
134
1215
 

C = 

 
134
1215
 

 



4)  

If

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

C =


 
Answer: 5 Answer: 6
Answer: 12 Answer: 12


SOLUTION 1 :

 

 
A
 
=  
24
44
 
B =  
1 -2
4 4
 

=  

2A = 2 
24
44
 
= 
48
88
 

C = 2A + B

C = 
48
88
 
+ 
1-2
44
 
= 
56
1212
 

C = 

 
56
1212
 

 



5)  

If

A= 
65
25
 
B= 
3-1
52
 
Find the matric         C = 2A + B

C =


 
Answer: 15 Answer: 9
Answer: 9 Answer: 12


SOLUTION 1 :

 

 
A
 
=  
65
25
 
B =  
3 -1
5 2
 

=  

2A = 2 
65
25
 
= 
1210
410
 

C = 2A + B

C = 
1210
410
 
+ 
3-1
52
 
= 
159
912
 

C = 

 
159
912
 

 



6)  

If

A= 
25
22
 
B= 
3-3
35
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
25
22
 
B =  
3 -3
3 5
 

=  

2A = 2 
25
22
 
= 
410
44
 

C = 2A + B

C = 
410
44
 
+ 
3-3
35
 
= 
77
79
 

C = 

 
77
79
 

 



7)  

If

A= 
44
21
 
B= 
1-4
34
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 4
Answer: 7 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
44
21
 
B =  
1 -4
3 4
 

=  

2A = 2 
44
21
 
= 
88
42
 

C = 2A + B

C = 
88
42
 
+ 
1-4
34
 
= 
94
76
 

C = 

 
94
76
 

 



8)  

If

A= 
23
25
 
B= 
2-1
33
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
23
25
 
B =  
2 -1
3 3
 

=  

2A = 2 
23
25
 
= 
46
410
 

C = 2A + B

C = 
46
410
 
+ 
2-1
33
 
= 
65
713
 

C = 

 
65
713
 

 



9)  

If

A= 
46
45
 
B= 
1-2
54
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 10
Answer: 13 Answer: 14


SOLUTION 1 :

 

 
A
 
=  
46
45
 
B =  
1 -2
5 4
 

=  

2A = 2 
46
45
 
= 
812
810
 

C = 2A + B

C = 
812
810
 
+ 
1-2
54
 
= 
910
1314
 

C = 

 
910
1314
 

 



10)  

If

A= 
24
44
 
B= 
1-1
32
 
Find the matric         C = 2A + B

C =


 
Answer: 5 Answer: 7
Answer: 11 Answer: 10


SOLUTION 1 :

 

 
A
 
=  
24
44
 
B =  
1 -1
3 2
 

=  

2A = 2 
24
44
 
= 
48
88
 

C = 2A + B

C = 
48
88
 
+ 
1-1
32
 
= 
57
1110
 

C = 

 
57
1110