There is no special reason why it should be.
But maybe if you read your entire homework question and took a minute to think about it and understand it, you could phrase a question that has enough information that someone could sensibly answer it.
If two fractions are equal then the difference between them is zero (0).
No, the relevant difference is 0.
Yes.
0%
No. They are equal. The only difference is the addition of the "0" in the thousandth place - and it has no value.
Because their difference, although small, is a constant that is not 0.
You should divide (difference of y-coordinates) / (difference of x-coordinates).
No, if you're talking about inequalities and you get 0 and 0 there should be a greater than or equal to sign in between the two.
In percentage of what in what species, or objects. It is 0% in water! The percentage will depend on what the denominator is. there will be a huge difference between haemoglobin as a percentage of total blood or percentage of total body mass. Also it will vary: people living at high altitudes tend to have higher concentrations.
There are infinitely many pairs of numbers whose difference is equal to the sum of 538 and 259 (which is 797). One such pair is 420 and 1217. Another pair is 0 and 797.
0%
no, its equal to 0