Answer:
1. y = 9280 - 20x
2. f(y) = 6.37y - 3
Step-by-step explanation:
1. The equation is given to be  
Now, rearranging the function we can write  
 
⇒ y = 9280 - 20x
Hence, this is the equation as a function of x. (Answer)
2. The given function is y - 6.37x = - 3
Therefore, we can write, y = 6.37x - 3
Hence, f(x) = 6.37x - 3
⇒ f(y) = 6.37y - 3.
Hence, option D is true. (Answer)
 
        
             
        
        
        
Answer:
the top is 16/4 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The value of 
Step-by-step explanation:
Given that  
now to find  from the given functions f(x) and f'x
 from the given functions f(x) and f'x
let 
Then put x=1 in above function we get

 (from the table f(1)=3 and f(3)=6)
 (from the table f(1)=3 and f(3)=6)
Therefore h(1)=6
Now to find h'(1)
Let
 (since
 (since   )
 )
put x=1 in above function we get

 (From the table
    (From the table  and
 and  )
)

Therefore 
 
        
                    
             
        
        
        
Answer:
Last equation given in the list of possible answers:
5 ( 1.5 + 1.5 + x ) = 25
Step-by-step explanation:
We need to include in the total addition of miles ridden during the week:
a) 1.5 miles to the school
b) 1.5 miles from school back home
c) x miles for the evening ride
so for the miles ridden per day we have: "1.5 +1.5 + x"
Now, since per week she does 5 days like this, then we need to multiply the expression above by 5 in order to total the number of miles she rides weekly (25 miles)
5 ( 1.5 + 1.5 + x ) = 25
And we can use this equation to find the amount "x" that Rin rides in the evening.
 
        
             
        
        
        
Answer:
8,600 acres are old-growth trees.
Step-by-step explanation:
You can find this by multiplying the percentage by the overall number of acres
20% * 43,000 = 8,600