The midpoint (x, y) and the end point
(22, y2) are known. Find
(21, y1) using the midpoint formula.

(21, y1) = (x + 22, y + y2)
(21, yı) = (2x – 22, 2y - y2)
(21, y1) = (x – 22, y - y2)
(21, yı) = (2x + 22,2y + y2)

answer: x

step-by-step explanation:

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:

wfirfkfr/jjfi; jn; p/ojkfvlbvmkmgkgkkkgkkg

step-by-step explanation:

i am not sure :

step-by-step explanation: