A scatter plot with a very strong linear association will have a correlation that is close to +/-1
        
             
        
        
        
<span>5x + 20 = -5x
5x + 5x = -20
10x = -20
x = -20/10
x = -2</span>
        
                    
             
        
        
        
Answer:
75% bigger
Step-by-step explanation:
Let the first number be x and the second be y.
So:

And:
 -----30% less than x
 -----30% less than x
Substitute  in
 in 




Cross multiply


Collect like terms


Make x the subject


So, the average is:




Rewrite as:

Express as percentage

This means that the average is 75% bigger than the second number
 
        
             
        
        
        
Answer:
Area = 37.5
Perimeter = 36
Step-by-step explanation:
Have a good day! :)