Steven won a portion of the local lottery. The price money is to the value of R18 000. He wants to invest the money but does not know which bank to choose. FNB offers Steven 5,6% for 8 years interest per annum . NEDBANK offers him 6,6% for 6 years simple interest per annum and Standard bank offers 7,2% for 5 years simple interest​

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:

168

step-by-step explanation:

i am pretty sure that the answer is 168

hiking down a winding trail.

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