Jill has a balance of $5,000 on her credit card with an annual interest rate of 15%. to pay off the $5,000 in three years, jill will have to make a minimum payment of $173.33 per month. to pay off the $5,000 in five years, jill will have to make a minimum payment of $118.95 per month. how much more does jill have to pay when the length of the loan changes from 3 years to 5 years? a) $1,239.88 b) $1,957.68 c) $2,137.00 d) $897.12

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:

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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