0.4 is rational.
Any irrational added to a rational is irrational.
Therefore we only need to add ANY irrational to 0.4 to produce an irrational number.
Examples of irrational numbers are: pi, e, sqrt(2), sin(pi/3), tan30 degrees, etc.
Answer:
didn't get the question did u forget to put the sequence ???????
pls write the question fully so that I can help you
No, the standard form is Ax + By = C. The form you have now is slope intercept form. So the correct way is 2x - y = 5.