Which algebraic expression is a polynomial with a degree of 2?
1). 4x3 − 2x
2). 10x2 − sq root of x
3). 8x3+5/x + 3
4). 6x2 − 6x + 5

a

step-by-step explanation:

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.