The expected rainfall, in inches, for a city for the month of July is given by the inequality |x − 4.25| ≤ 0.15. Find the city’s expected maximum and minimum rainfall amounts.

The minimum rainfall expected is
inches, and the maximum rainfall expected is
inches.

4.1 ; 4.4

Step-by-step explanation:

For min:

x - 4.25 = -0.15

x = 4.1

For max:

x - 4.25 = 0.15

x = 4.4

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: