If f(x)= 1
= x +9, which statement is
3
always true?
1) f(x) < 0 3) Ifx<0 then f(x) < 0
2)f(x) >0 4)If x > 0 then f(x) > 0

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236