Answer:
3,5
Step-by-step explanation:
 
        
             
        
        
        
You just subtract it 125 - 1.82 and it gives you 123.88. i dont know how else to explain
        
             
        
        
        
Answer:


Step-by-step explanation:
Given


Required
Solve
Substitute  in
 in 

Open bracket

Collect like terms


Divide both sides by 2

Substitute  in
 in 



 
        
             
        
        
        
I think that it’s A, Perpendicular (correct me if I’m wrong)
        
                    
             
        
        
        
Answer:
The percentage of workers not wearing the helmets is 5.3 %. 
Step-by-step explanation:
A safety committee randomly examined 900 construction workers during their work, and found that 48 workers were not wearing helmets. Estimate the percentage of workers who do not wear protective masks during their working time with 98% confidence
total workers = 900
Not wearing helmet = 48
Percentage which are not wearing the helmets 
=  %
%