Surface Area of Prisms Quiz
Complete
Completed Attempt 1
10
32 cm
a
b
front
c
8 cm
d
The length of side b equals the length of side c.
The length of side b equals the length of side a.
X Side d is four times as long as side c.
Side d is four times as long as side b.
Submitted

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:

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

$12. that is my answer.