The answer is 50 degrees
You get this by subtracting 180-130
        
             
        
        
        
Answer:
The correct answers is rectangle and square.
 
        
             
        
        
        
P(5,2) = 5!/3! = 20
in 20 ways you can give medals
 
        
             
        
        
        
Answer:
<h2>-x²+4x +6</h2>
Step-by-step explanation:
Given f(x)=4x+1 and g(x)=x²-5
(f-g)(x) is derived by taking the difference of both functions
(f-g)(x) = f(x)-g(x)
(f-g)(x) = 4x+1 - (x²-5)
(f-g)(x)  = 4x+1-x²+5
(f-g)(x)  = -x²+4x +6
This gives the requires expression
 
        
             
        
        
        
Hello,
Please, see the attaced file.
Thanks.