1/4 of the customers are male and 1/5 are from out of town, what porportion would you expect to be male and out of town? A.1/10 B.1/9 C.1/20 D. 1/25

10 * 563.67 = 5636.7

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:

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )

english maybe i can ..