For this case, the first thing we must do is define variables.
We have then:
x: number of pens
y: number of pencils
We now write the system of inequations:

The solution to the system of inequations is given by the shaded region.
Note: see attached image.
D because a rational number can be converted into a fraction and the square root of 5 cannot be covert into a fraction because it equals 2.2
Answer:
Perimetre of the rencatngel Perimetre of the circle and substrac the.
The roots of a quadratic equation<span> are the </span>x-intercepts<span> of the </span>graph<span>. ... A </span>quadratic equation<span> has </span>two<span>roots if its </span>graph<span> has </span>two x-intercepts<span>; A </span>quadratic equation<span> has ... Here you can get a visual of your</span>quadratic function<span> ...</span>