To find the inverse of a function:
1. Replace f(x) with y.
2. Switch x and y.
3. Solve for y.
4. Replace y with f-1(x) (notation for inverse fucntions)

Let's use y instead of f(x).

Switch the variables...

Now, we solve for y.



Now, just put that inverse function notation on there.
Answer:
B. x= 5
Step-by-step explanation:
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Answer:
64π square feet (the formula for the area is r^2π so you have to multiply 8 with itself and you get 64. 64×π is 64π)
Answer: use the order of operations and combine like terms
Step-by-step explanation:
what you do to one side of the equals sign you must do to the other
The law of cosine helps us to know the third side of a triangle when two sides of the triangle are already known. The value of x is 117.8°. thus, the correct option is A.
<h3>What is the Law of Cosine?</h3>
The law of cosine helps us to know the third side of a triangle when two sides of the triangle are already known the angle opposite to the third side is given. It is given by the formula,

where
c is the third side of the triangle
a and b are the other two sides of the triangle,
and θ is the angle opposite to the third side, therefore, opposite to side c.
As per the law of cosine, the measure of angle x can be written as,

Hence, the value of x is 117.8°. thus, the correct option is A.
Learn more about the Law of Cosine:
brainly.com/question/17289163
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