Find the domain of the rational expression: x-4/2x-6 1. all real numbers except 3
2. all real numbers except 6
3. all real numbers except O
4. all real numbers except 4

All real numbers except 3

Step-by-step explanation:

Given

Required

Determine the domain

We start by writing the following inequality

Add 6 to both sides

Divide both sides by 2

As such, the domain of x is all real numbers except 3

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft