Answer:
Sample = 1046
Population = All adults. 
Step-by-step explanation:
In Statistics, a sample can be defined as a set of items, objects or individuals collected, selected or drawn from a population. Thus, a sample is a subset of a population. In this scenario, the sample is 1046.
On the other hand, population can be defined as the total number of individuals in a survey. Thus, all the adults are a population. 
 
        
             
        
        
        
Answer:
5x^2 + xy + 20
Step-by-step explanation:
Begin with 5x^2+3xy+12,  Subtracting 2xy yields 5x^2 + xy + 12.  Next, subtracting -8 yields 5x^2 + xy + 12 - (-8), or   5x^2 + xy + 20
 
        
             
        
        
        
In a triangle, the side opposite the largest angle is the longest one. So the answer is 8 inches.
        
                    
             
        
        
        
Answer:
-7
Step-by-step explanation: