Mathematics, 26.09.2019 23:30 legendman27

Astudent is attempting to find a formula for the sequence below. which statement best applies to the sample mathematical work?

given the sequence 3, –9, 27, i first find the ratio of the terms. i find that the ratio is -9/3=-3 so i plug this value into the formula to get ^a n=(-3)^n-1 as a final answer.
a.
the ratio is calculated improperly.
b.
the formula does not take into account the first term of the sequence.
c.
the sequence is not a geometric sequence, so the equation used is wrong.
d.
the sample mathematical work is correct.

Answers: 2

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Astudent is attempting to find a formula for the sequence below. which statement best applies to the...

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