We are given the following functions

Let us first find f(g(x)
Substitute x = 5x - 1 into the function f(x) and simplify

Now let us find g(f(x))
Substitute x = x² - 3x + 1 into the function g(x) and simplify

Therefore, f(g(x) and g(f(x)) are
Answer:
x=3
Step-by-step explanation:
7x=21
divide by 7
x=3
<u>Answer-</u>
<em>The length of line segment WU is</em><em> 4 cm</em><em>.</em>
Option 1. 4 cm is correct.
<u>Solution-</u>
As given that, RSTU is an parallelogram.
RT and SU are its two diagonals. They intersect each other at point W.
Properties of parallelogram is that they bisect each other.
i.e SW = WU and RW = WT
As given that, SW = 4 cm.
So, WU = SW = 4 cm
Therefore, the length of line segment WU is 4 cm.
Answer:
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20