In order for a function to have an inverse that is also a function there are 2 main requirements:
1. The function should be bijective (ie) the function should be one-one ( each element in codomain has not more than 1 pre image in domain) and onto ( Range should be equal to codomain)
2. The inverse function should be defined by a suitable domain and range
Hope this answer helps you..
99m I think I not sure though
X+4x+6x=
All of the variables are x so you don't have to do anything
6x+4x=10x
there is still one x left
x = 1
10x+x = 11x
6
Like how

= 36
Square root does the opposite.
Edit: my mistake, it is 6
Answer:
a is an even number and b is an odd number
Step-by-step explanation:
if a is even and b is even then the sum would be even ex.10+6=16. I'd a and b are both odd the sum would be even ex. 13+9=22. one has to be odd and one has to be even for the sum to be odd ex. 5+4=9