Answer:
A. 
Step-by-step explanation:
Given:
The regular polygon is a decagon having 10 sides.
Perimeter of the given polygon is,
.
We know that, perimeter of a regular polygon of 
sides is given as,
where, 
is the length of each side.
Here, 
Plug in these values and solve for . This gives,
Therefore, the side length of the given polygon is
ANSWER
EXPLANATION
The given problem is
This is defined if and only if
Even the given expression can be simplified to obtain:
The exclusion is
Answer:
Step-by-step explanation:
Their point of intersection, assuming there is one, will be somewhere on the line y = x. This line, y = x, is the line of symmetry between a function and its inverse. So if the two do in fact intersect, it will be at some point on that line
Answer: 30 miles
I am right.
