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= 
64
25
 
B= 
2-4
55
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
55
44
 
B= 
2-2
25
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
53
42
 
B= 
1-3
44
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
56
45
 
B= 
2-1
41
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
33
22
 
B= 
3-1
25
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
46
42
 
B= 
1-3
31
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
45
34
 
B= 
1-3
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
66
43
 
B= 
4-3
33
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
63
42
 
B= 
2-2
23
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
66
32
 
B= 
2-3
51
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
64
25
 
B= 
2-4
55
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 4
Answer: 9 Answer: 15


SOLUTION 1 :

 

 
A
 
=  
64
25
 
B =  
2 -4
5 5
 

=  

2A = 2 
64
25
 
= 
128
410
 

C = 2A + B

C = 
128
410
 
+ 
2-4
55
 
= 
144
915
 

C = 

 
144
915
 

 



2)  

If

A= 
55
44
 
B= 
2-2
25
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 8
Answer: 10 Answer: 13


SOLUTION 1 :

 

 
A
 
=  
55
44
 
B =  
2 -2
2 5
 

=  

2A = 2 
55
44
 
= 
1010
88
 

C = 2A + B

C = 
1010
88
 
+ 
2-2
25
 
= 
128
1013
 

C = 

 
128
1013
 

 



3)  

If

A= 
53
42
 
B= 
1-3
44
 
Find the matric         C = 2A + B

C =


 
Answer: 11 Answer: 3
Answer: 12 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
53
42
 
B =  
1 -3
4 4
 

=  

2A = 2 
53
42
 
= 
106
84
 

C = 2A + B

C = 
106
84
 
+ 
1-3
44
 
= 
113
128
 

C = 

 
113
128
 

 



4)  

If

A= 
56
45
 
B= 
2-1
41
 
Find the matric         C = 2A + B

C =


 
Answer: 12 Answer: 11
Answer: 12 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
56
45
 
B =  
2 -1
4 1
 

=  

2A = 2 
56
45
 
= 
1012
810
 

C = 2A + B

C = 
1012
810
 
+ 
2-1
41
 
= 
1211
1211
 

C = 

 
1211
1211
 

 



5)  

If

A= 
33
22
 
B= 
3-1
25
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 5
Answer: 6 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
33
22
 
B =  
3 -1
2 5
 

=  

2A = 2 
33
22
 
= 
66
44
 

C = 2A + B

C = 
66
44
 
+ 
3-1
25
 
= 
95
69
 

C = 

 
95
69
 

 



6)  

If

A= 
46
42
 
B= 
1-3
31
 
Find the matric         C = 2A + B

C =


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


SOLUTION 1 :

 

 
A
 
=  
46
42
 
B =  
1 -3
3 1
 

=  

2A = 2 
46
42
 
= 
812
84
 

C = 2A + B

C = 
812
84
 
+ 
1-3
31
 
= 
99
115
 

C = 

 
99
115
 

 



7)  

If

A= 
45
34
 
B= 
1-3
45
 
Find the matric         C = 2A + B

C =


 
Answer: 9 Answer: 7
Answer: 10 Answer: 13


SOLUTION 1 :

 

 
A
 
=  
45
34
 
B =  
1 -3
4 5
 

=  

2A = 2 
45
34
 
= 
810
68
 

C = 2A + B

C = 
810
68
 
+ 
1-3
45
 
= 
97
1013
 

C = 

 
97
1013
 

 



8)  

If

A= 
66
43
 
B= 
4-3
33
 
Find the matric         C = 2A + B

C =


 
Answer: 16 Answer: 9
Answer: 11 Answer: 9


SOLUTION 1 :

 

 
A
 
=  
66
43
 
B =  
4 -3
3 3
 

=  

2A = 2 
66
43
 
= 
1212
86
 

C = 2A + B

C = 
1212
86
 
+ 
4-3
33
 
= 
169
119
 

C = 

 
169
119
 

 



9)  

If

A= 
63
42
 
B= 
2-2
23
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 4
Answer: 10 Answer: 7


SOLUTION 1 :

 

 
A
 
=  
63
42
 
B =  
2 -2
2 3
 

=  

2A = 2 
63
42
 
= 
126
84
 

C = 2A + B

C = 
126
84
 
+ 
2-2
23
 
= 
144
107
 

C = 

 
144
107
 

 



10)  

If

A= 
66
32
 
B= 
2-3
51
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 9
Answer: 11 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
66
32
 
B =  
2 -3
5 1
 

=  

2A = 2 
66
32
 
= 
1212
64
 

C = 2A + B

C = 
1212
64
 
+ 
2-3
51
 
= 
149
115
 

C = 

 
149
115