Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.14, 8 , 2, -4, . . .
A. an = 6n - 20; a20 = 100
B. an = -6n + 14; a20 = -106
C. an = 6n - 14; a20 = 106
D. an = -6n + 20; a20 = -100
Answer: D
Mathematics
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