What is the inverse of the function below? f(x) = x/5-2

A. f^-1(x) = 5(x - 2)

B. f^-1(x) = 2(x + 5)

C. f^-1(x) = 5(x + 2)

D. f^-1(x) = 2(x - 5)

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

the answer for your question is

step-by-step explanation:

20days louise can read300 pg

step-by-step explanation:

1 day 15 pg 300: 15= 20

x day 300 pg

n=1.75+1.75

step-by-step explanation:

3.5/2=1.75