6.) On a certain night in Alaska the temperature was 4 degrees. Later that evening, the temperature dropped 5 degrees. What was the new temperature?

-1 degree

Step-by-step explanation:

If it was 4 degrees, and it dropped 5 degrees, that means it is 4 - 5 = -1

I hope this helps! :)

Have a nice day!

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: