Answer:
6
Step-by-step explanation:
Hello,
The two triangles are <u>similar</u> and x is <u>positive</u>, <u>different from 0</u>, so we can write.

Thanks
 
        
             
        
        
        
Yes, they are equivalent.  Another equivalent fraction would be any fraction that equals to 1. Eg. 9/9
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Given that  33.4% of people have sleepwalked. 
Sample size n =1459
Sample favourable persons = 526
Sample proportion p = 
Sample proportion p is normal for large samples with mean = 0.334 and 
std error = 
a) P(526 or more of the 1459 adults have sleepwalked.)

b) Yes, because hardly 1.4% is the probability
c) 33.4 is very less compared to the average.  Either sample should be improved representing the population or population mean should be increased accordingly.