Is the following number rational or irrational?

Since it can be expressed as fraction, it's a rational number.

Rational

Step-by-step explanation:

To find out whether it is rational or irrational let's write the definitions of both

Rational: Any number that can be written as a fraction, integer, whole number, natural number

Irrational: Numbers that can't be written as a fraction

This has to be rational because every rational number can be written as a repeating decimal.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3