A = 2
b = -5
c = 6
The coefficients are 2 and -5
The constant is 6
        
             
        
        
        
Answer:
x = 7.2m
Step-by-step explanation:
Because it is a right triangle, you can use the Pythagorean theorem:
4^2+6^2 = x^2
16+36 = x^2
52 = x^2
sqrt52 = x
7.2 = x
 
        
                    
             
        
        
        
Answer:
z-score for 900 points = -4
Step-by-step explanation:
To find the z scores 
z=(x-mean)/standard deviation
so 
z=(900-1500)/150
z= -600/150
 
        
             
        
        
        
Answer:
13m-2
Step-by-step explanation:
(20m+3)-(7m-5)
20m+3-7m+5
13m-2
 
        
             
        
        
        
Step-by-step explanation:
the answer is in the above image