Select each equation that the number 10^2 makes true. 0.031 x __ = 31
0.501 x __ = 501
4.08 x __ = 408
0.97 x __ = 97
0.55 x __ = 550

4.08 x 10^2 = 408 = true

0.97 x 10^2 = 97 = true

Step-by-step explanation: the third and fourth equations are true

there would be 365 different 4 digit numbers

step-by-step explanation:

i belive that it is 365 because i asked google

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: