X - 5 > 7 please help

B

Step-by-step explanation:

Anything greater than 12 will make the inequality correct, for examples

Anything less than 12: 7 - 5 = 2 > 7. INVALID

If x = 12: 12 - 5 = 7 > 7. INVALID

Anything greater than 12: 16 - 5 = 11 > 7. VALID

answer: i oofed

step-by-step explanation:

oofed=wow

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: