Answer:
The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line
Step-by-step explanation:
u single?
<span>If a certain element has a melting point over 700 ∘C and a density less than 2.00 g/cm3, one possible identity for this element is Calcium. </span>Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
We should confirm that f(x) has an inverse in the first place. If it does, then
![f\left(f^{-1}(x)\right) = x](https://tex.z-dn.net/?f=f%5Cleft%28f%5E%7B-1%7D%28x%29%5Cright%29%20%3D%20x)
Given that f(x) = x/(2 - x), we have
![f\left(f^{-1}(x)\right) = \dfrac{f^{-1}(x)}{2 - f^{-1}(x)} = x](https://tex.z-dn.net/?f=f%5Cleft%28f%5E%7B-1%7D%28x%29%5Cright%29%20%3D%20%5Cdfrac%7Bf%5E%7B-1%7D%28x%29%7D%7B2%20-%20f%5E%7B-1%7D%28x%29%7D%20%3D%20x)
Solve for the inverse:
![\dfrac{f^{-1}(x)}{2 - f^{-1}(x)} = x](https://tex.z-dn.net/?f=%5Cdfrac%7Bf%5E%7B-1%7D%28x%29%7D%7B2%20-%20f%5E%7B-1%7D%28x%29%7D%20%3D%20x)
![f^{-1}(x) = 2x - x f^{-1}(x)](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%20%3D%202x%20-%20x%20f%5E%7B-1%7D%28x%29)
![f^{-1}(x) + x f^{-1}(x) = 2x](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%20%2B%20x%20f%5E%7B-1%7D%28x%29%20%3D%202x)
![f^{-1}(x) (1 + x) = 2x](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%20%281%20%2B%20x%29%20%3D%202x)
![f^{-1}(x) = \dfrac{2x}{1+x}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%20%3D%20%5Cdfrac%7B2x%7D%7B1%2Bx%7D)
Then
![f^{-1}(-2) = \dfrac{2(-2)}{1-2} = \boxed{4}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28-2%29%20%3D%20%5Cdfrac%7B2%28-2%29%7D%7B1-2%7D%20%3D%20%5Cboxed%7B4%7D)
Note that this is the same as solve for x when f(x) = -2 :
x/(2 - x) = -2 ⇒ x = 4
No it is not a prime number
Answer:
77 degrees.
Step-by-step explanation:
That be your answer there mate.