Use the chain rule.
Let u = 25sin²(x), such that dy/dx = dy/du · du/dx


 
 
        
        
        
Answer: B
Step-by-step explanation: A function is a relation in which each input value is paired to exactly one output value.
Technically, if you had the same input value twice and the same output value corresponded to each of those, it would still be a function because you are just repeating what you have twice.
However, most teachers want to think of it as each input value must have exactly one corresponding value to be a function.
 
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
y=x you can imagine by drawing graph
 
        
             
        
        
        
In order from least to greatest: 
5/10 , 7/12 , 4/6 
You have to find a common denominator of all 3 numbers which is 60 and then you proceed with the next steps. 
        
             
        
        
        
Answer:
8)y=2x-3
9)y= -1/2+4
Step-by-step explanation: