Find the first term and the common difference of the arithmetic sequence described. Give a formula for the nth term of the sequence.3rd term is 19; 8th term is 59
A. a = 3; d = 8; an = 8n - 5
B. a = 16; d = 8; an = 8n + 11
C. a = 11; d = 8; an = 3n + 8
D. a = 3; d = 8; an = 8n + 3
Answer: A
Mathematics
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