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

C =


 


Answer:_______________




2)  

If

A= 
65
35
 
B= 
4-3
22
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
23
24
 
B= 
3-3
31
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
14
32
 
B= 
2-4
22
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
64
22
 
B= 
1-4
25
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
35
32
 
B= 
1-1
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
63
25
 
B= 
1-4
51
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
16
24
 
B= 
2-3
24
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
14
23
 
B= 
3-2
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
16
42
 
B= 
4-2
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
25
44
 
B= 
4-1
22
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 9
Answer: 10 Answer: 10


SOLUTION 1 :

 

 
A
 
=  
25
44
 
B =  
4 -1
2 2
 

=  

2A = 2 
25
44
 
= 
410
88
 

C = 2A + B

C = 
410
88
 
+ 
4-1
22
 
= 
89
1010
 

C = 

 
89
1010
 

 



2)  

If

A= 
65
35
 
B= 
4-3
22
 
Find the matric         C = 2A + B

C =


 
Answer: 16 Answer: 7
Answer: 8 Answer: 12


SOLUTION 1 :

 

 
A
 
=  
65
35
 
B =  
4 -3
2 2
 

=  

2A = 2 
65
35
 
= 
1210
610
 

C = 2A + B

C = 
1210
610
 
+ 
4-3
22
 
= 
167
812
 

C = 

 
167
812
 

 



3)  

If

A= 
23
24
 
B= 
3-3
31
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
23
24
 
B =  
3 -3
3 1
 

=  

2A = 2 
23
24
 
= 
46
48
 

C = 2A + B

C = 
46
48
 
+ 
3-3
31
 
= 
73
79
 

C = 

 
73
79
 

 



4)  

If

A= 
14
32
 
B= 
2-4
22
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
14
32
 
B =  
2 -4
2 2
 

=  

2A = 2 
14
32
 
= 
28
64
 

C = 2A + B

C = 
28
64
 
+ 
2-4
22
 
= 
44
86
 

C = 

 
44
86
 

 



5)  

If

A= 
64
22
 
B= 
1-4
25
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 4
Answer: 6 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
64
22
 
B =  
1 -4
2 5
 

=  

2A = 2 
64
22
 
= 
128
44
 

C = 2A + B

C = 
128
44
 
+ 
1-4
25
 
= 
134
69
 

C = 

 
134
69
 

 



6)  

If

A= 
35
32
 
B= 
1-1
32
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
35
32
 
B =  
1 -1
3 2
 

=  

2A = 2 
35
32
 
= 
610
64
 

C = 2A + B

C = 
610
64
 
+ 
1-1
32
 
= 
79
96
 

C = 

 
79
96
 

 



7)  

If

A= 
63
25
 
B= 
1-4
51
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 2
Answer: 9 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
63
25
 
B =  
1 -4
5 1
 

=  

2A = 2 
63
25
 
= 
126
410
 

C = 2A + B

C = 
126
410
 
+ 
1-4
51
 
= 
132
911
 

C = 

 
132
911
 

 



8)  

If

A= 
16
24
 
B= 
2-3
24
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
16
24
 
B =  
2 -3
2 4
 

=  

2A = 2 
16
24
 
= 
212
48
 

C = 2A + B

C = 
212
48
 
+ 
2-3
24
 
= 
49
612
 

C = 

 
49
612
 

 



9)  

If

A= 
14
23
 
B= 
3-2
45
 
Find the matric         C = 2A + B

C =


 
Answer: 5 Answer: 6
Answer: 8 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
14
23
 
B =  
3 -2
4 5
 

=  

2A = 2 
14
23
 
= 
28
46
 

C = 2A + B

C = 
28
46
 
+ 
3-2
45
 
= 
56
811
 

C = 

 
56
811
 

 



10)  

If

A= 
16
42
 
B= 
4-2
32
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
16
42
 
B =  
4 -2
3 2
 

=  

2A = 2 
16
42
 
= 
212
84
 

C = 2A + B

C = 
212
84
 
+ 
4-2
32
 
= 
610
116
 

C = 

 
610
116