Final answer:
The explicit formula for the given sequence is a_n = 3 + 4(n-1).
Step-by-step explanation:
The given sequence is (3, 7, 11, 15, 19, 23, 27, ...).
To find the explicit formula for this sequence, we can observe that each term is obtained by adding 4 to the previous term. So, the formula can be written as:
an = 3 + 4(n-1)
where n represents the position of the term in the sequence.