two angles are supplementary. the measure of one is 3.5 times the measure of the other angle. find both angles

Supplementary angles add to 180.  Let x = the measure of one angle.  The other is three and one half times larger, or 3.5x:

x + 3.5x = 180

Step-by-step explanation:

42

step-by-step explanation:

256/6=42

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: