Which method can be used to find the area of the composite shape?
Decompose the figure into one semicircle and one rectangle and add the areas.
Decompose the figure into one semicircle and one rectangle and subtract the area
Decompose the figure into two semicircles and one rectangle and subtract the are
Decompose the figure into two semicircles and one rectangle and add the areas.

Decompose the figure into two rectangles and add the areas.

Step-by-step explanation:

Hope this helped.

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: