Answer:
The answer is the letter B.
The first column represents the x-values, and the second row represents the y-values.
For that reason, if we have:
2x - 7y = -1
x + 3y = -5
Then, the matrix will be given by:
[ 2      -7
  1        3]
Then, the third colum will be the equality:
[ -1 
  -5]
So the correct option is the letter B. 
 
        
                    
             
        
        
        
The formula for circumference of a circle 
=
2
π
r
The radius 
=
3
c
m
(assuming units to be in cm)
2
π
r
=
2
×
22
7
×
3
=
132
7
=
18.86
c
m
        
                    
             
        
        
        
The value of x is 77 cm which will make the triangles similar by SSS similarity theorem
Given length of the three sides of one triangle are  35 , 20 and 20
and length of the three sides of another triangle are  x, 44,44
We need to find the values of x by using SSS Similarity theorem
We know that triangles are are similar by side - side - side similarity creation and hence the sides are in the same ratio 
As both the triangles are isosceles triangles 
Therefore , 
x/35 = 44/20=44/20 (Using ratio)
Solving the equation we get 
x=44*35/20
x= 77
Hence the value of x is 77cm
Learn more about similarity of triangles here brainly.com/question/14285697
#SPJ10
 
        
             
        
        
        
5x^4
Step-by-step explanation:
simply we take 5x^4 bec. it can be divided by 40 and 135
 
        
             
        
        
        
Answer:
the answer is 7/12 hours
Step-by-step explanation: