A boat costs $11,000 and decreases in value by 7% per year. How much will the boat be worth after 6 years? a $7,116.89 b $10,958.00 c $6,618.71 d $16,508.03

A) $7,116.89

Step-by-step explanation:

Use the simple interest formula, V = P(1 + r)^t

Principal is 11,000, r is -0.07, t is 6

multiply 11,000 by 0.93^6

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:

answer is : muchas/tipicas

have a nice day!

~recklesschicken