Answer:
a)
b)
c)
Step-by-step explanation:
We are given the following in the question:
1. Equivalent expression

Since all the terms are like terms, we can write,

2. Sum of given expression

3. Standard form of the expression 

which is the required standard form of the given expression.
 
        
             
        
        
        
Answer: j=8 and j=11
Explanation: 7(8) and 7(11) is equal to 56 and 77. 56 and 77 are both greater than 30. Therefore, the answer is j=8 and j=11.
        
             
        
        
        
Answer:
Step-by-step explanation:
Using the section formula, if a point (x,y) divides the line joining the points (x  
1
 ,y  
1
 ) and (x  
2
 ,y  
2
 ) in the ratio m:n, then  
(x,y)=(  
m+n
mx  
2
 +nx  
1
  
 ,  
m+n
my  
2
 +ny  
1
  
 )
The vertices of the triangle are given to be (x  
1
 ,y  
1
 ),(x  
2
 ,y  
2
 ) and (x  
3
 ,y  
3
 ). Let these vertices be A,B and C respectively.  
Then the coordinates of the point P that divides AB in l:k will be
(  
l+k
lx  
2
 +kx  
1
  
 ,  
l+k
ly  
2
 +ky  
1
  
 )
The coordinates of point which divides PC in m:k+l will be  
⎩
⎪
⎪
⎪
⎨
⎪
⎪
⎪
⎧
  
m+k+l
mx  
3
 +(k+l)  
(l+k)
lx  
2
 +kx  
1
  
  
 ,  
m+k+l
my  
3
 +(k+l)  
(l+k)
ly  
2
 +ky  
1
  
  
  
⎭
⎪
⎪
⎪
⎬
⎪
⎪
⎪
⎫
  
⇒(  
m+k+l
kx  
1
 +lx  
2
 +mx  
3
  
 ,  
m+k+l
ky  
1
 +ly  
2
 +my  
3
  
 )
 
        
             
        
        
        
- Fresh Harbour
 - Netherton
 - Old Town Harbour
 
Please mark as brainliest
 
        
             
        
        
        
Answer:
 It's line C.
Step-by-step explanation:
the slope of line C is 1/2 so that's the constant of proportionality