The function f is defined by f(x)=2.1x−1.7. use this formula to find the following values of f. f(x+2)

The value of

Step-by-step explanation:

Given: The function

Using this formula, we need to find the value of

Hence, we need to substitute by to find the value of

Multiplying the term by , we get,

Adding the constant term,

Thus, the value of is

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:

i believe the correct answer is b.