Answer:
All three functions have the same minimum
Step-by-step explanation:
Inequalities are used to compare unequal expressions.
The actual comparison is:
or 
The temperatures are given as:

From the above list, we have:


By comparison,
or 
Using absolute values, the inequalities are:
or 
Hence, the actual comparison is:
or 
Read more about inequalities and absolute values at:
brainly.com/question/24797699
This is a quotient (division) of two functions we must be concerned with the fact that division by zero is undefined.
Since g(x) is in the divisor position, it cannot equal 0.


Subtract 6 from both sides to solve.
So the domain is all real numbers except -6
Set notation {x | x ∈ R, x ≠ -6}
Interval notation (-∞,-6)∪(-6,∞)
I'm assuming you're referring to problem 6. You are asked to find the number of x intercepts or roots, which is another term for "zero". I prefer the term root or x intercept as "zero" seems misleading. Anyways, all we do is count the number of times the graph crosses the x axis. This happens 4 times as shown in the attached image below. I have marked these points in red. The graph can directly cross over the x axis, or it can touch the x axis and then bounce back. Either way, it is considered an x intercept.
<h3>Answer: there are 4 x intercepts (or 4 roots)</h3>