1. Divide by 4
sqrt 2x+8 = 6
2. Square both sides to remove square root
2x+8 = 36
3. Subtract 8
2x = 28
4. Divide by 2 to make x by itself
x = 14
Have in mind that as you cannot take the square root of a negative number, this means that x-4 CANNOT be negative. So it's either 0 or it's positive.
So we proceed like this:<span>x−4≥0</span>
<span>x−4+4≥0+4</span>
<span>x≥4
</span>So the domain is <span>{<span>x|x≥4</span>}
</span>In interval notation, the domain is <span><span>[4,∞)
I hope thi can help you</span></span>
Answer:
7.5
Step-by-step explanation:
use the formula A=1/2bh
Um ok what is this.......