Answer: 554
Step-by-step explanation:
If prior population proportion is known, then the formula to find the sample size is given by :-

As per given description, we have
p= 0.1
E=0.025
Critical z-value for 95% confidence : 
Then, 

Hence, the minimum sample size required = 554.
 
        
             
        
        
        
Answer:
30ft
Step-by-step explanation:
if you add 26 and 4, you'll get an answer of 40
 
        
             
        
        
        
Answer:
Omar could invite 19 friends.
Step-by-step explanation:
the equation for this word problem would be 
5x+30=125
subract 30 from both sides
5x=95
divide both sides by 5
x=19
 
        
                    
             
        
        
        
Answer:
missing side length = 9
Step-by-step explanation:

a = 6 
b = 7 
c = missing side 




