Answer:
Graph 4
Step-by-step explanation:
Parallel lines have no solution to the system of equation. Graph 4 is a set of parallel lines, so they will never intersect.
The rationalized form of the expression will be 
<h3>Rationalization of rational functions</h3>
Given the rational function

Multiplying by the conjugate of the denominator

Simplifying further will give:

Hence the rationalized form of the expression will be 
Learn more on rationalization here: brainly.com/question/14261303
The function can be expressed as a rational function is
.
We have to determine
Which of the following is written as a rational function?
According to the question
A rational function is a function that can be expressed as the quotient or ratio of two polynomial functions, where the polynomial in the denominator must have a degree of at least 1.
A rational function can be expressed as;

Then,
The required rational function is expressed as;

Where p(x) is (x-5) and g(x) is 3x.
Therefore,
The function is,

Hence, the function can be expressed as a rational function is
.
To know more about Rational Function click the link given below.
brainly.com/question/15324782
So yeah the correct answer is y. I hope this is what u needed.
<h2>
Answer:</h2><h2>The chance is 100 % since we have not seen it in the past three days.</h2>
Step-by-step explanation:
The odds of seeing a black cat are 25% every day.
It also means that the possibility of seeing a black cat is once in 4 days, since 25%
Given, we have not seen one black cat in 3 days.
The chance of seeing a black cat on the 4th day = ?
= 100 % since we have not seen it in the past three days.