Answer:
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Step-by-step explanation:
Given
 ---x = 0, in 2012
 -- x = 5, in 2017
Required
Select all possible equations
Because there is a reduction in the population, as time increases; the rate must be less than 1.
An exponential function is represented as:

Where

rate > 1 in options (a) and (b) i.e. 1.03
This implies that (a) and (b) cannot be true 
For option (c), we have:

Set x = 0

Set x = 5

<em>This is true because the calculated values of f(0) and f(5) correspond to the given values</em>
For option (d), we have:

Set x = 0

<em>This is false because the calculated value of f(0) does not correspond to the given value</em>
For option (e), we have:

Set x = 0
undefined
<em>This is false because the f(x) is not undefined at x = 0</em>
For option (f), we have:

Set x = 0

<em>This is false because the calculated value of f(0) does not correspond to the given value</em>
<em>From the computations above, only (c) </em>
<em> is true</em>
 
        
             
        
        
        
<span>Total mass contains 320g copper. How many parts of 16g copper are there of the total mass of 320g copper? 320/16 = 20. There are 20 portions of 16g copper.
(320/16) * 3 = 60g
There are 60g of zinc in the compound.</span>
        
             
        
        
        
Answer:
A=30  B=90  C=60
Step-by-step explanation:
A=30 C=60  B=90
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given
Let x represent the number of tickets, and p the charges 

A reduction of 50c gives an increment of 50 tickets.
This gives:
 ---- 

Required
Determine the demand function
First, calculate the slope:




So, the equation is:




Hence, the function is:

 
        
             
        
        
        
Hello,
Five sixths of forty two is = 35.