Find the common difference d and the nth term an of the arithmetic sequence with the specified terms. 5th term is -26; 12th term is -89
A. d = -9; an = -9n - 10
B. d = -1; an = -1n + 19
C. d = -1; an = -1n - 9
D. d = -9; an = -9n + 19
Answer: D
Mathematics
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Mathematics