A sequence is represented by the formula an=-5+a(n-1). If a4= 20, what is the 6th term in the sequence?
To find the 6th term in the sequence, we can start by finding the values of the 5th term
Using the formula an=-5+a(n-1):
a5 = -5 + a(5-1) = -5 + a4
Since a4 = 20,
a5 = -5 + 20 = 15
Now we can find the 6th term:
a6 = -5 + a(6-1) = -5 + a5
Since a5 = 15,
a6 = -5 + 15 = 10
Therefore, the 6th term in the sequence is 10.