This is a problem on  a venn diagram in which the problem determines the number of subscribers that are mutually heeding for channel A and channel B. The equation to be followed is 
U = U' + A + B + AandB
Substituting,
8500 = 5140 + 2450+1980- AandB
AandB = 1070 subscribers
        
             
        
        
        
Answer:
1500 J is the correct answer. 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Kindly check explanation 
Step-by-step explanation:
Given the regression equation :
y = 31.6 + 10.9x
 x = the number of years of study ;
y = the grade on the test.
The predicted is y which is also the same as the response variable, hence, the response variable is grade on the test
The predictor variable is x, which is the independent variable, which is the number of years of study. 
From. The regression output given ;
The slope which is the Coefficient of the predictor variable is 10.9 which means that for every unit change in number of years of study, the grade on test increases by 10.9
The intercept which is the constant value, 31.6, means, the least a person can get in the get in grade is 31.6 (at x = 0)
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Let  and swap x and y:
 and swap x and y:

Then, rearranging for y:


