Answer:
Option B is correct
x= 3, At level 3, 27 number of people contacted
Step-by-step explanation:
As per the given statement:
The number of people contacted at each level of a phone tree can be represented by:
[tex]f(x) = 3^x[/tex]
where, x represents the level.
We have to find the value of x when f(x) = 27.
⇒27 = 3^x
We can write 27 as:
[tex]27 = 3 \times 3 \times 3 = 3^3[/tex]
then;
[tex]3^3 = 3^x[/tex]
on comparing we have;
3 = x
or
x = 3
Therefore, the value of x is, 3.
