Atheater group is having a carwash fundraiser. the group can only spend $39 on soap, which is enough to wash 40 cars. each car is charged $5. a) if c is the total number of cars washed and p is the profit, which is the independent variable and which is the dependent variable? b) is the relationship between c and p a function? explain. c) write an equation that shows this relationship. d) find a reasonable domain and range for the situation.

dhdhth

step-by-step explanation:

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: