Mr Wong predicted that he would sell 45 automobiles He actually sold 48 automobiles What are the values of a and b in the table below?
Percent Error
Error
Absolute error
Ratio
Item
Automobiles
Approximate value Exact value
45
48
Percent error
D
20
3
6.25%
0 - 20.6.6.26%
0 - 06.0%

idk

Step-by-step explanation:

69

step-by-step explanation:

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: