Answer:
1.the corresponding angles are propositional
2.the corresponding sides are proportional
 
        
             
        
        
        
Mean is the average. You would add up all the numbers and divide by how many numbers you have.  433/10=43.3
        
             
        
        
        
Answer:
about 471 cubic centimeters of salsa are missing from the jar
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 -- Another point
 -- Another point

Step-by-step explanation:
Given


Solving (a): Another point
Substitute 1 for x and 8 for f(x) in 

Remove absolute bracket



Substitute 8 for a in 

Let x = -1

Remove absolute bracket


So, another point is:

Solving (b): The value of a
This has been solved in (a) above

 
        
             
        
        
        
Answer:
(3, - 1 )
Step-by-step explanation:
given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is
(  ,
 ,  )
 )
here (x₁, y₁ ) = R (4, - 5 ) and (x₂, y₂ ) = D (2, 3 ) 
midpoint = (  ,
 ,  ) = (
 ) = (  ,
 ,  ) = (3, - 1 )
 ) = (3, - 1 )