Which is a factor of x^2 + 8x - 48?
(х – 6)
(х + 4)
(х – 16)
(х + 12).

Answer

(x+12)

Explanation

When your checking a factor, the sign is the opposite, so you would plug in -12 to try (x+12). -12^2 +8(-12)-48.

Then solve:

-144+144=0

(x+12) is your answer.

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.