Respuesta :

The explicit rule for the geometric sequence is in the form,

              an = (a1)^(r -1)

where an is the nth term, a1 is the first term, and r is the common ratio. Substituting the known terms from the given above, we arrive to the explicit form of the sequence which is,

            an = 49^(3 - 1)

Answer:

The correct answer is, 4/9(3^n-1)

Step-by-step explanation:

Ver imagen kendallr77