Answer:
a
    
b
       ![x(t) =  x_o e^{\frac{-\alpha y_o }{\beta }[e^{-\beta t} - 1] }](https://tex.z-dn.net/?f=x%28t%29%20%3D%20%20x_o%20e%5E%7B%5Cfrac%7B-%5Calpha%20y_o%20%7D%7B%5Cbeta%20%7D%5Be%5E%7B-%5Cbeta%20t%7D%20-%201%5D%20%7D)
c
       
Step-by-step explanation:
From the question we are told that 
     
Now integrating both sides 
      
Now taking the exponent of both sides 
        
=>     
Let  
So 
       
Now  from the question we are told that 
       
Hence 
         
=>     
So 
         
From the question we are told that 
       
substituting for y 
       
=>   
Now integrating both sides 
          
Now taking the exponent of both sides 
         
=>     
Let  
 =>  
Now  from the question we are told that 
       
So  
       
=>    
divide both side  by    
=>    
So 
     
=>   
=>    ![x(t) =  x_o e^{\frac{\alpha y_o }{\beta }[e^{-\beta t} - 1] }](https://tex.z-dn.net/?f=x%28t%29%20%3D%20%20x_o%20e%5E%7B%5Cfrac%7B%5Calpha%20y_o%20%7D%7B%5Cbeta%20%7D%5Be%5E%7B-%5Cbeta%20t%7D%20-%201%5D%20%7D)
Generally as  t tends to infinity ,   tends to zero
 tends to zero  
so
     
 
        
             
        
        
        
Answer: 18w^2 - 6w + 4
Explanation:
(4 + 7w^2) - (6w - 11w^2)
= 4 + 7w^2 - 6w + 11w^2
= 18w^2 - 6w + 4
        
             
        
        
        
Reflection across x axis and move 1 unit to the right
        
             
        
        
        
Four times a number would equal 4n