Answer:
Consecutive integers: 
 
x
(x+1)
(x+2)
 
Now your equation is given by sum of the first and twice the third is equal to four times the second decreased by five:
 
x+2(x+2) = 4(x+1)-5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Given data :
Sample standard deviation, s = 15
Sample mean, 
n = 23
a). 98% confidence interval




∴ 
   
So, 98% CI is 



 
        
             
        
        
        
Answer:
x=30
Step-by-step explanation:
90-70= 20 so y=20
20+40=60 and 90-60=30
so x=30
(pls dont delete this mods!)