Write each number as a repeating decimal, rounded to six digits. (FOR THE FOLLOWING QUESTIONS BELOW, KEEP IN MIND THAT THEIR ARE BAR NOTATIONS. IF YOU DON’T COMPREHEND WHAT I’M SAYING, LOOK AT THE IMAGE PROVIDED.)

1. 0.9

2. 4. 145

3. 0.243

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:

christopher is 272,195 year old

step-by-step explanation:

what level of math? also i don't need to be paid if i can you.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,