Answer:
Step-by-step explanation:
Let 
and 
be two rational numbers, where b and d are not zero and a, b, c and d are integers.
1. Given:
2. Multiply to get a common denominator :
3. Simplify:
4. Since 
then 
If 
are integers, then 
are integers too. So the fraction
is a rational number
Answer: 
Step-by-step explanation:
Given:
A town's population has been growing linearly. In 2003, the population was 35000, and the population has been growing by 1200 (constant rate of change) people each year.
The equation of a line is given by :-
, where m is the slope ( constant rate of change) and c is the initial value of the function.
From the given statement , we have the equation for the population x years after 2003 :-
Since it is 125/1000 it must be a 5 in the denominator because 5^3=125.
Therefore it is D
Answer: Choice C
The vertical asymptote at x = -4 tells us that -4 is not part of the domain. This only applies to 1/(x+4). If we plug in x = -4, we get...
f(x) = 1/(x+4)
f(-4) = 1/(-4+4)
f(-4) = 1/0
f(-4) = undefined; because of the division by zero error
The value x = -4 is allowed in the other answer choices.
Answer:
about $0.20 per kilowatt-hour. i hope this helps
Step-by-step explanation:
