For this case we must find the inverse of the following function:

We follow the steps below:
Replace f(x) with y:

We exchange the variables:

We solve for "y":

Multiply by -2 on both sides of the equation:

We raise both sides of the equation to the square to eliminate the radical:

We subtract 3 from both sides of the equation:

We change y by f ^ {- 1} (x):

Answer:
Johnny now has 90 so Jeana did not take 25 she only took 10
Answer:
you can travel 150 miles
Step-by-step explanation:
Please ask the question in English, if you are not able to, I believe you are in the wrong language section and suggest you try something else before you get your question taken down.
Answer:
12 units
Step-by-step explanation:
Allow me to revise your question for a better understanding and I hope it will fit the original one.
The parallelogram shown below has an area of 72 units squared. The base is 6 and the other side is 13 Find the missing height.
Here is my answer:
Given:
The area: 72 units squared.
The base: 6 units
As we know that the area of the parallelogram is represented by below formula:
A = b*h where h is the height and b is the base
In this situation, we know:
72 = 6*h
<=> h = 12
So the missing height is 12 units
Step-by-step explanation: