Katie has to drive 15 miles east and 36 miles north to get to her aunt's house. which of the following equations could be used to find the direct distance to her aunt's house? a2 + 152 = 362 362 + b2 = 152 152 + 362 = c2

(2,9)

i think thats the answer i checked it on google

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: