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= 
15
44
 
B= 
3-3
43
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
65
21
 
B= 
2-1
52
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
34
21
 
B= 
4-1
35
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
56
21
 
B= 
2-3
33
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
54
41
 
B= 
1-3
52
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
63
24
 
B= 
1-3
42
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
15
32
 
B= 
3-2
25
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
53
24
 
B= 
4-4
35
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
26
32
 
B= 
1-3
25
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
15
31
 
B= 
2-3
42
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
15
44
 
B= 
3-3
43
 
Find the matric         C = 2A + B

C =


 
Answer: 5 Answer: 7
Answer: 12 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
15
44
 
B =  
3 -3
4 3
 

=  

2A = 2 
15
44
 
= 
210
88
 

C = 2A + B

C = 
210
88
 
+ 
3-3
43
 
= 
57
1211
 

C = 

 
57
1211
 

 



2)  

If

A= 
65
21
 
B= 
2-1
52
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 9
Answer: 9 Answer: 4


SOLUTION 1 :

 

 
A
 
=  
65
21
 
B =  
2 -1
5 2
 

=  

2A = 2 
65
21
 
= 
1210
42
 

C = 2A + B

C = 
1210
42
 
+ 
2-1
52
 
= 
149
94
 

C = 

 
149
94
 

 



3)  

If

A= 
34
21
 
B= 
4-1
35
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
34
21
 
B =  
4 -1
3 5
 

=  

2A = 2 
34
21
 
= 
68
42
 

C = 2A + B

C = 
68
42
 
+ 
4-1
35
 
= 
107
77
 

C = 

 
107
77
 

 



4)  

If

A= 
56
21
 
B= 
2-3
33
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 9
Answer: 7 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
56
21
 
B =  
2 -3
3 3
 

=  

2A = 2 
56
21
 
= 
1012
42
 

C = 2A + B

C = 
1012
42
 
+ 
2-3
33
 
= 
129
75
 

C = 

 
129
75
 

 



5)  

If

A= 
54
41
 
B= 
1-3
52
 
Find the matric         C = 2A + B

C =


 
Answer: 11 Answer: 5
Answer: 13 Answer: 4


SOLUTION 1 :

 

 
A
 
=  
54
41
 
B =  
1 -3
5 2
 

=  

2A = 2 
54
41
 
= 
108
82
 

C = 2A + B

C = 
108
82
 
+ 
1-3
52
 
= 
115
134
 

C = 

 
115
134
 

 



6)  

If

A= 
63
24
 
B= 
1-3
42
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 3
Answer: 8 Answer: 10


SOLUTION 1 :

 

 
A
 
=  
63
24
 
B =  
1 -3
4 2
 

=  

2A = 2 
63
24
 
= 
126
48
 

C = 2A + B

C = 
126
48
 
+ 
1-3
42
 
= 
133
810
 

C = 

 
133
810
 

 



7)  

If

A= 
15
32
 
B= 
3-2
25
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
15
32
 
B =  
3 -2
2 5
 

=  

2A = 2 
15
32
 
= 
210
64
 

C = 2A + B

C = 
210
64
 
+ 
3-2
25
 
= 
58
89
 

C = 

 
58
89
 

 



8)  

If

A= 
53
24
 
B= 
4-4
35
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 2
Answer: 7 Answer: 13


SOLUTION 1 :

 

 
A
 
=  
53
24
 
B =  
4 -4
3 5
 

=  

2A = 2 
53
24
 
= 
106
48
 

C = 2A + B

C = 
106
48
 
+ 
4-4
35
 
= 
142
713
 

C = 

 
142
713
 

 



9)  

If

A= 
26
32
 
B= 
1-3
25
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
26
32
 
B =  
1 -3
2 5
 

=  

2A = 2 
26
32
 
= 
412
64
 

C = 2A + B

C = 
412
64
 
+ 
1-3
25
 
= 
59
89
 

C = 

 
59
89
 

 



10)  

If

A= 
15
31
 
B= 
2-3
42
 
Find the matric         C = 2A + B

C =


 
Answer: 4 Answer: 7
Answer: 10 Answer: 4


SOLUTION 1 :

 

 
A
 
=  
15
31
 
B =  
2 -3
4 2
 

=  

2A = 2 
15
31
 
= 
210
62
 

C = 2A + B

C = 
210
62
 
+ 
2-3
42
 
= 
47
104
 

C = 

 
47
104