What are the next 2 terms of 0.3, -0.09, 0.0027, -0.00081

Step-by-step explanation:

Question 265723: arithmetic sequence a10=x+3 a11=2x+7 a12=4x-2 which term equals ... Question 266261: is 1,0.3,0.009,0.0027,0.0081 a geometric sequence or a ...

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:

step-by-step explanation: