If we want to verify that g ( x ) is the inverse of f ( x ) we have to show that:
( f ° g ) = ( g ° f )
f ( g ( x ) )= 3 · ( 1/3 x ) = x
g ( f ( x ) ) = 1/3 · ( 3 x ) = x
Answer:
C ) 1/3 ( 3 x )
Answer:
![x=4](https://tex.z-dn.net/?f=x%3D4)
Step-by-step explanation:
By the Triangle Proportionality Theorem:
![\displaystyle \frac{x}{12}=\frac{x+1}{15}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7Bx%7D%7B12%7D%3D%5Cfrac%7Bx%2B1%7D%7B15%7D)
By cross-multiplication:
![\displaystyle 12(x+1)=15(x)](https://tex.z-dn.net/?f=%5Cdisplaystyle%2012%28x%2B1%29%3D15%28x%29)
Distribute:
![12x+12=15x](https://tex.z-dn.net/?f=12x%2B12%3D15x)
Subtract 12x from both sides:
![12=3x](https://tex.z-dn.net/?f=12%3D3x)
Hence:
![x=4](https://tex.z-dn.net/?f=x%3D4)
Answer:
Step-by-step explanation:
400*8.25%= $33 tax
Answer: its d
Step-by-step explanation: