X = ?

Find the composite function 20 points and brainliest

Explanation:

fg(x) = (x+2)(3x^2 - 1)
= 3x^3 - x + 6x^2 - 2
= 3x^3 + 6x^2 - x - 2

gf(x) = (3x^2 - 1)(x + 2)
= 3x^3 + 6x^2 - x - 2

As you can see:

fg(x) = gf(x)
3x^3 + 6x^2 - x - 2 = 3x^3 + 6x^2 - x - 2

77.94% of the boxes will weigh 25 ounces or less.

First, we need to find the z-score (the number of standard deviation from the mean).

(25 - 24) / 1.3 = 0.77

A weight of 25 is 0.77 standard deviations above the mean. 

Now, simply use a normal distribution table to determine the percent below this amount. It is about 77.94%.