Eddie was born in 1972.when he celebrated his twelfth birthday, the roller coaster was 100 years old. new york's coney island was the home of the first roller coaster built in the united states. in what year was it built? york

1884

Step-by-step explanation:

1972+12 years=1984

1984-100=1884

muyb ajo

step-by-step explanation:

jegosu

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: