2. Thirty-five women between the ages of 20-60 were interviewed as they
wisited the local super-market. They were asked if they usually bought a scesfio
brand of toilet paper or whichever brand was on sale the cheapest brand Then
they were also asked if they usually filed up their gas tank with gas froma
specific chain of gas stations or whichever station had the cheapest gas. The
partial raw data is shown in the two-way table below
Cheapesi Toile
Specfic Toilet
Paper
Total
4
b
Specffic Gos
Siptions
Cheapest Cars
Stortions
C
16
d
21
35
Total
e

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:

21

step-by-step explanation:

answerim :

n

step-by-step explanation:

im not sure but my dad knows