Answer:
The two functions are inverses.
Step-by-step explanation:
We are supposed to find whether the two functions are inverses.
To find the inverse of f(x)
y = 5x+4
y-4=5x
Replace x with y and y with x
So,
So,
So,The two functions are inverses.
Density = Mass / Volume = 2000/0.5
Density = 4000 Kg/m^3
14x0.75=10.5
15-10.5=4.5
so she will get $4.50c
Hope this helps! :D
Answer:
y = 7, x = 7
Step-by-step explanation:
11y + 13 = 90
11y = (90 - 13)
11y = 77
y = 7
2x + 6 = 20 (because 20 is half of 40)
2x = (20 - 6)
2x = 14
x=7