Let f--1 = 1/f

find an example of such a function, where the domain of f
consistsof a single point.

For all real numbers x, define the function f by f(x)=0 if x≠1 and f(1)=2.

Step-by-step explanation:

The domain of f is the set of real numbers (R). To define at a point x, we need that f(x)≠0 as division by zero is undefined.

However, there is only one point x such that f(x)≠0, the point x=1.

Thus and the domain of is the set {1}.

answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

step-by-step explanation:

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9