A certain arithmetic sequence has this explicit formula for the nth term: an = 11 + (n - 1)(4)
The same sequence has this recursive formula:
an = an-1 +__
What number belongs in the blank space in the recursive formula?

4

Step-by-step explanation:

The n th term of an arithmetic sequence is

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given

= 11 +(n - 1)4 , then

d = 4

The recursive formula allows a term in the sequence to be found by adding d to the previous term, thus

= + 4

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

it’s supposed to be -4+45=41

step-by-step explanation: