Answer:

Step-by-step explanation:
the minimum of f is for x = 1 and f(1)=0
f is decreasing for x<=1 and increasing for x>=1
so the domain is 

x>=1 so x is positive and we can take the square root
so 
The answer would be D. It would be $42 in the end if you picked D.
Answer: only has one solution
Step-by-step explanation: If you find the answer for 7x+3x-8, youll get 10x+8. This will be the same answer for 2(5x-4). Making them equal and having only one solution
we are given

Since, we have to find inverse function
step-1:
Set y=f(x)
It is already there
step-2:
Switch x and y

step-3: Solve for y
We can take cos on both sides

we can simplify it

now, we can solve for y


..............Answer