Answer:
a and b
Step-by-step explanation:
 
        
             
        
        
        
Answer: A. 0.20
Step-by-step explanation:
Let A be the event of employees needed corrective shoes and B be the event that they needed major dental work .
We are given that : 
We know that 
Then,   
Hence, the probability that an employee selected at random will need either corrective shoes or major dental work : 
hence, the correct option is (A).
 
        
             
        
        
        
It is okay to take the inverse of both side given that you remember to exclude the value that make the denominator  zero which is in this case r=-1
        
             
        
        
        
7x - (25x^2 + 12x) = 7x - 25x^2 - 12x = -25x^2 - 5x
        
             
        
        
        
Its 105° because the rhombus is essentially a square or rectangle of sorts and at least 2 sides have to be alike