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= 
16
23
 
B= 
1-1
35
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
15
32
 
B= 
1-1
21
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
64
45
 
B= 
2-1
42
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
64
43
 
B= 
1-2
44
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
55
25
 
B= 
3-2
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
43
41
 
B= 
4-4
51
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
23
25
 
B= 
3-3
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
23
33
 
B= 
2-2
42
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
44
22
 
B= 
1-4
24
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
43
33
 
B= 
1-2
43
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
16
23
 
B= 
1-1
35
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
16
23
 
B =  
1 -1
3 5
 

=  

2A = 2 
16
23
 
= 
212
46
 

C = 2A + B

C = 
212
46
 
+ 
1-1
35
 
= 
311
711
 

C = 

 
311
711
 

 



2)  

If

A= 
15
32
 
B= 
1-1
21
 
Find the matric         C = 2A + B

C =


 
Answer: 3 Answer: 9
Answer: 8 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
15
32
 
B =  
1 -1
2 1
 

=  

2A = 2 
15
32
 
= 
210
64
 

C = 2A + B

C = 
210
64
 
+ 
1-1
21
 
= 
39
85
 

C = 

 
39
85
 

 



3)  

If

A= 
64
45
 
B= 
2-1
42
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 7
Answer: 12 Answer: 12


SOLUTION 1 :

 

 
A
 
=  
64
45
 
B =  
2 -1
4 2
 

=  

2A = 2 
64
45
 
= 
128
810
 

C = 2A + B

C = 
128
810
 
+ 
2-1
42
 
= 
147
1212
 

C = 

 
147
1212
 

 



4)  

If

A= 
64
43
 
B= 
1-2
44
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 6
Answer: 12 Answer: 10


SOLUTION 1 :

 

 
A
 
=  
64
43
 
B =  
1 -2
4 4
 

=  

2A = 2 
64
43
 
= 
128
86
 

C = 2A + B

C = 
128
86
 
+ 
1-2
44
 
= 
136
1210
 

C = 

 
136
1210
 

 



5)  

If

A= 
55
25
 
B= 
3-2
41
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 8
Answer: 8 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
55
25
 
B =  
3 -2
4 1
 

=  

2A = 2 
55
25
 
= 
1010
410
 

C = 2A + B

C = 
1010
410
 
+ 
3-2
41
 
= 
138
811
 

C = 

 
138
811
 

 



6)  

If

A= 
43
41
 
B= 
4-4
51
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 2
Answer: 13 Answer: 3


SOLUTION 1 :

 

 
A
 
=  
43
41
 
B =  
4 -4
5 1
 

=  

2A = 2 
43
41
 
= 
86
82
 

C = 2A + B

C = 
86
82
 
+ 
4-4
51
 
= 
122
133
 

C = 

 
122
133
 

 



7)  

If

A= 
23
25
 
B= 
3-3
54
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 3
Answer: 9 Answer: 14


SOLUTION 1 :

 

 
A
 
=  
23
25
 
B =  
3 -3
5 4
 

=  

2A = 2 
23
25
 
= 
46
410
 

C = 2A + B

C = 
46
410
 
+ 
3-3
54
 
= 
73
914
 

C = 

 
73
914
 

 



8)  

If

A= 
23
33
 
B= 
2-2
42
 
Find the matric         C = 2A + B

C =


 
Answer: 6 Answer: 4
Answer: 10 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
23
33
 
B =  
2 -2
4 2
 

=  

2A = 2 
23
33
 
= 
46
66
 

C = 2A + B

C = 
46
66
 
+ 
2-2
42
 
= 
64
108
 

C = 

 
64
108
 

 



9)  

If

A= 
44
22
 
B= 
1-4
24
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 4
Answer: 6 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
44
22
 
B =  
1 -4
2 4
 

=  

2A = 2 
44
22
 
= 
88
44
 

C = 2A + B

C = 
88
44
 
+ 
1-4
24
 
= 
94
68
 

C = 

 
94
68
 

 



10)  

If

A= 
43
33
 
B= 
1-2
43
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
43
33
 
B =  
1 -2
4 3
 

=  

2A = 2 
43
33
 
= 
86
66
 

C = 2A + B

C = 
86
66
 
+ 
1-2
43
 
= 
94
109
 

C = 

 
94
109