Adrawer contains 16 socks: 10 black, 4 brown, and 2 blue. once a sock is taken from the drawer, it is not replaced before the next sock is taken. if it's dark in the room and you can't see what color the socks are, what is the probability of ending up with a brown sock then a blue sock?

123

step-by-step explanation:

agngel

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: