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Anon25 [30]
3 years ago
9

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics
1 answer:
Sveta_85 [38]3 years ago
7 0

Answer:  \bold{(A)\ a_n=7n-2}

<u>Step-by-step explanation:</u>

The explicit rule for an arithmetic sequence is: a_n=a_1+d(n-1)\quad \text{where}\ a_1\ \text{is the first term and d is the difference}

In the sequence provided {5, 12, 19, ... }, the first term is 5 and the difference (d) is 12 - 5 = 7

a_n=5+7(n-1)\\.\quad=5+7n-7\\.\quad=7n-2

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