Find the output of d when the input t is 11 d=-20+11t

For this case, we must find the value of the output (Given by "d") when the value of the input (Given by "t") is equal to 11. For this, we have the following equation:

Substituting :

Different signs are subtracted and the sign of the major is placed.

Thus, the value of the output is

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: