Carrie started with 12 ounces of water when she began her walk. when she was finished walking she had 2 1/4 ounces of water left. how much did she drink?

Step-by-step explanation:

Given : The initial amount of the water when Carrie started her walk = 12 ounces

The amount of water after she finished her walk =

Then , the water she had drunk is given by :-

Hence, the amount of water she had drunk =  

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:

i dont know

step-by-step explanation: