Answer:
D as it is the obtuse
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
5
Step-by-step explanation:
2*5=10
10*5=50
 
        
                    
             
        
        
        
Answer:
it should be B.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
b
Step-by-step explanation:
 
        
             
        
        
        
Answer:
2775 ways
Step-by-step explanation:
We have been given the case to choose exactly two tails when flipped 75 times  means  
Since,  is equal to
 is equal to  
  
Here n =75, r=2 substituting the values we will get 


After simplification we will get  
Cancel out the common term that is 73! we will get
after more simplification we will get 
Finally, we will get 