Awindow shades like a parallelogram has area of 18 1/3 ft.² the height of a window is 3 1/3 feet how long is the base of the window

Datum: Area, A=1813ft2 and height, h=31ft

Required: Base of the parallelogram?

*Solution: Area, A=b×h
1813ft2=b×31ft solve for base, b
b=553×131=5593=.591ft

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: