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makvit [3.9K]
3 years ago
15

Write a rule for the nth term of the arithmetic sequence. d=2, a12=18. Please explain!

Mathematics
2 answers:
fiasKO [112]3 years ago
8 0
I have no idea what you mean right now.  Can you get a picture of whatever it is you are having trouble on?
Anastasy [175]3 years ago
3 0
1.an = 3n - 1 2. an = 2(2n - 3) 3.an = 4^n 4.an = (2/3)^n 5. an = (-1)^n(n + 5) 6. an = (-1)^n + 1(n + 6) 7. an= n+3/2n-1 8. a1 = -5 and an = an-1 - 3 for n ≥ 2 9. a1 = -6 and an = -2an-1 for n ≥ 2 10.a1 = 4 and an = 3an-1 + 2 for n ≥ 2 11. Find a8 when a1...
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