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= 
25
33
 
B= 
1-2
35
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
13
32
 
B= 
1-2
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
65
42
 
B= 
4-3
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
55
33
 
B= 
2-3
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
33
25
 
B= 
1-2
53
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
26
35
 
B= 
4-3
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
25
32
 
B= 
3-3
51
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
45
34
 
B= 
2-4
43
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
15
43
 
B= 
1-3
22
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
54
32
 
B= 
4-2
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
25
33
 
B= 
1-2
35
 
Find the matric         C = 2A + B

C =


 
Answer: 5 Answer: 8
Answer: 9 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
25
33
 
B =  
1 -2
3 5
 

=  

2A = 2 
25
33
 
= 
410
66
 

C = 2A + B

C = 
410
66
 
+ 
1-2
35
 
= 
58
911
 

C = 

 
58
911
 

 



2)  

If

A= 
13
32
 
B= 
1-2
54
 
Find the matric         C = 2A + B

C =


 
Answer: 3 Answer: 4
Answer: 11 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
13
32
 
B =  
1 -2
5 4
 

=  

2A = 2 
13
32
 
= 
26
64
 

C = 2A + B

C = 
26
64
 
+ 
1-2
54
 
= 
34
118
 

C = 

 
34
118
 

 



3)  

If

A= 
65
42
 
B= 
4-3
45
 
Find the matric         C = 2A + B

C =


 
Answer: 16 Answer: 7
Answer: 12 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
65
42
 
B =  
4 -3
4 5
 

=  

2A = 2 
65
42
 
= 
1210
84
 

C = 2A + B

C = 
1210
84
 
+ 
4-3
45
 
= 
167
129
 

C = 

 
167
129
 

 



4)  

If

A= 
55
33
 
B= 
2-3
32
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 7
Answer: 9 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
55
33
 
B =  
2 -3
3 2
 

=  

2A = 2 
55
33
 
= 
1010
66
 

C = 2A + B

C = 
1010
66
 
+ 
2-3
32
 
= 
127
98
 

C = 

 
127
98
 

 



5)  

If

A= 
33
25
 
B= 
1-2
53
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 4
Answer: 9 Answer: 13


SOLUTION 1 :

 

 
A
 
=  
33
25
 
B =  
1 -2
5 3
 

=  

2A = 2 
33
25
 
= 
66
410
 

C = 2A + B

C = 
66
410
 
+ 
1-2
53
 
= 
74
913
 

C = 

 
74
913
 

 



6)  

If

A= 
26
35
 
B= 
4-3
32
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 9
Answer: 9 Answer: 12


SOLUTION 1 :

 

 
A
 
=  
26
35
 
B =  
4 -3
3 2
 

=  

2A = 2 
26
35
 
= 
412
610
 

C = 2A + B

C = 
412
610
 
+ 
4-3
32
 
= 
89
912
 

C = 

 
89
912
 

 



7)  

If

A= 
25
32
 
B= 
3-3
51
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
25
32
 
B =  
3 -3
5 1
 

=  

2A = 2 
25
32
 
= 
410
64
 

C = 2A + B

C = 
410
64
 
+ 
3-3
51
 
= 
77
115
 

C = 

 
77
115
 

 



8)  

If

A= 
45
34
 
B= 
2-4
43
 
Find the matric         C = 2A + B

C =


 
Answer: 10 Answer: 6
Answer: 10 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
45
34
 
B =  
2 -4
4 3
 

=  

2A = 2 
45
34
 
= 
810
68
 

C = 2A + B

C = 
810
68
 
+ 
2-4
43
 
= 
106
1011
 

C = 

 
106
1011
 

 



9)  

If

A= 
15
43
 
B= 
1-3
22
 
Find the matric         C = 2A + B

C =


 
Answer: 3 Answer: 7
Answer: 10 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
15
43
 
B =  
1 -3
2 2
 

=  

2A = 2 
15
43
 
= 
210
86
 

C = 2A + B

C = 
210
86
 
+ 
1-3
22
 
= 
37
108
 

C = 

 
37
108
 

 



10)  

If

A= 
54
32
 
B= 
4-2
41
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 6
Answer: 10 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
54
32
 
B =  
4 -2
4 1
 

=  

2A = 2 
54
32
 
= 
108
64
 

C = 2A + B

C = 
108
64
 
+ 
4-2
41
 
= 
146
105
 

C = 

 
146
105