Answer:
Correct answer: Vr = 10³ = 1,000 or V = 720
Explanation:
Given:
Input set of numbers S = {0, 1, 2, ....9} ⇒ x = 10
A string that changes n = 3
I guess the numbers can be repeated as 1,1,1 or 2,3,2....
then these are variations with repetition and the formula is:
Vr (x n) = xⁿ
Vr (10 3) = 10³ = 1,000
if the numbers cannot be repeated then these are variations without repeating and the formula is :
V = (x n) = x (x -1) (x -2) ..... (x - n +1)
(10 - 3 + 1) = 8
V = (10 3) = 10 ·9 · 8 = 720
God is with you!!!