x-60 is the length. Multiply you get x2-110x=3000 this is a quadratic equation.
 
        
             
        
        
        
Answer:
 The value of a = - 1  ,   And b =  
    
Step-by-step explanation:
Given as :
 Function f(x) = 
And f(f(1)) = 0     And f(2) = - 3
Now For , x = 2 , y = - 3
I.e  f(2) = 
or,  - 3 =  
 
I.e 2 + a = - 6 - 3b
Or, a + 3b = - 8               ....... 1
Again  f(f(1)) = 0 
So,   = 0
 = 0 
Or,  1 + a = 0 
∴    a = - 1  
So , put htis value of a i n eq 1 , we get value of  b
So , - 1 + 3b = - 8
Or,   3b = - 7 
∴       b =  
  
Hence The value of a = - 1  ,   And b =  Answer
    Answer 
 
        
             
        
        
        
<span>So rather than think about how to find the whole numbers, let's try to find the two perfect squares nearest to 38. There is one greater than it and one smaller than it. The square root will lie between the squared value of each. (e.g. 64 is the perfect square, 8 is the squared value i refer to)
</span><span>
6 ,7. 6squared is 36 and 7 squared is 42 
therefore 38 lies between these two numbers</span>
        
                    
             
        
        
        
 No, Perry is not using the correct ratio, because 15:17 is not equivalent to 5:7
15 divided by 3 is indeed 5 but divided 17 by 3 does not give you 7, nor a whole number.
I hope this helps.