In the figure, angle d measures 31° and angle a measures 27°. the measurement of angle b is °. the measurement of angle f is °. nextreset

Angle B is 63 degrees; Angle F is 59 degrees

Step-by-step explanation:

For Angle B:

We know A is 27 degrees. You can see that angle C is a right angle, so add 90 to 27 to get 117 degrees. Subtract 117 from 180 to get 63 degrees.

For Angle F:

This is the same thing for angle B. We know Angle D is 31 degrees. You can see that E is a right angle, so you add 90 to 31 to get 121 degrees. Subtract it from 180 degrees to get 59 degrees.

Hope that helps!

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: