The number of boys and girls participated in a trekking event are 1/12 and 13/17 of the total number of students. If the total number of students was 408 , how many did not participate in the event?D

134

Step-by-step explanation:

1/12th of 408 is 34, 13/17ths of 408 is 312, so 346 students participated. 480-346 is 134.

since both sides equal, there are infinitely many olutions.

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: