Kwei-twang kuo plans to make these online payments: store charge account $160; charitable donation, $40; rent $550; cable bill, $42.01. she began the day with a checking account balance of $16.83. later that same day she estimated her online payments and transferred $800 into checking from savings to cover the expected payments. what will be the balance of her checking account after the online payments are made?

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:

squares, rhombus, rectangles