Iwill pick the the sum of a rational number and an irrational number is always irrational. a.) false b.) true

Question

The sum of a rational number and an irrational number is always irrational.

A.) False  

B.) True

B.) True

Hope this helps!

B) true

saying that x is irrational and y is rational

x+y = z will be irrational.

Assuming that z is rational and knowing that the difference between r rationals is still a rational will imply that x is rational also. So the assumption is false and the sum is always irrational

true? is that what you're asking or do you mean something else?

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.