Please help with math test

total measure of circle = 360 degree

AB = 70 DEGREE

BC = 104 DEGREE

THEREFORE AD + DC + AB + BC = 360

AD+DC =360 – 70 – 104

AD + DC = 186 degree

Now,

ADC = 186 DEGREE

Arc Measure  =  186°

Step-by-step explanation:

Arc Measure = 360 - (104 + 70)

= 360 - 174

= 186 °

Hope I Helped,

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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: