I'd be more than happy to help. Im a sophmore and Love math
        
                    
             
        
        
        
The point of inflection is calculated by equating the second derivative to zero and determining x from there.
f"(x) = -x²2xsinx² + cosx²(2x) = 0
2xcosx² - 2x³sinx² = 0
2x (cosx² - xsinx²) = 0
2x = 0   ⇒  x = 0
cosx² - xsinx² = 0   ⇒ x = 3.82 (if you use shift+solve in your scientific calculator)
Thus, the function only has 1 point of inflection and it is at x = 0.
        
             
        
        
        
Answer:
-12.6
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
106
Step-by-step explanation:
85% of 125 is 106 so therefore you would need to answer 106 correct.
 
        
             
        
        
        
8m,3n,9p would im guessing make the numbers to the rest of the problem