Area of composite figures foesson 38
linda is buying an l-shaped couch for her
living room, which is 15 feet by 20 feet
she does not want the couch to take up
more than 25% of the living room floor
15 it
8 ft
20 ft
what percentage of the floor space does
the couch cover?

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:

it would be 6xy and -16xy.

step-by-step explanation:

step-by-step explanation: