3 7
10) The area of a rectangular park is 5 square miles. The length of the park is į mile. What is the
width of the park?
21
A 40 miles
3

C. 5 miles
24

B. 35 miles

4
D. 3 miles

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:

after simplifying it i got: -36.25 as my answer. hope that !

how am i supposed to answer

step-by-step explanation: