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Mathematics, 08.12.2020 04:00 laura1649
Describe the pattern in each sequence. Then find the next two terms of the sequence.
1. 3, 6, 12, 24, β¦z 2. 9, 15, 21, 27, β¦ 3. 1.5, 2.25, 3, 3.75, β¦
4. 9.9, 8.8, 7.7, 6.6, β¦ 5. 1.5, 4.5, 13.5, 40.5, β¦ 6. 40, 20, 10, 5, β¦
7. 7, 11, 15, 19, β¦ 8. 67, 60, 53, 46, β¦ 9. 12, 7, 2,-3, β¦
Tell whether the sequence is arithmetic. If it is, identify the common difference.
10. 4, 8, 12, 16, β¦ 11. β11, 5, 0, 6, β¦ 12. 4, 8, 16, 32, β¦
13. 12, 23, 34, 45, β¦ 14. 2, 4, 7, 9, β¦ 15. 1, 3, 9, 27, β¦
16. β16, β11, β6, β1, β¦ 17. β9, β4.5, β0.5, 4, β¦ 18. β7, β14, β21, β28, β¦
19. 20. 5, 10, 15, 20, β¦ 21. 2, 20, 200, 2000, β¦
22. You have a gift card for a coffee shop worth $90. Each day you use the card to get a coffee for $4.10. Write a rule to represent the amount of money left on the card as an arithmetic sequence. What is the value of the card after buying 8 coffees?
23. You start a savings account with $200 and save $30 each month. Write a rule to represent the amount of money you invest into your savings account as an arithmetic sequence. How much money will you have invested after 12 months?
Find the third, fifth, and tenth terms of the sequence described by each rule.
24. A(n) = 4 + (n + 1)(β5) 25. A(n) = 2 + (n + 1)(6)
26. A(n) = β5.5 + (n β 1)(2) 27. A(n) = 3 + (n β 1)(1.5)
28. A(n) = β2 + (n β 1)(5) 29. A(n) = 1.4 + (n β 1)(3)
30. A(n) = 9 + (n β 1)(8) 31. A(n) = 2.5 + (n β 1)(2.5)
Tell whether each sequence is arithmetic. Justify your answer. If the sequence is arithmetic, write a recursive and an explicit formula to represent it.
32. 1.6, 0.8, 0, β0.8, β¦ 33. 5, 10, 20, 40, β¦ 34. 5, 13, 21, 29, β¦
35. 51, 47, 43, 39, β¦ 36. 0.2, 0.5, 0.8, 1.1, β¦ 37. 7, 14, 28, 56, β¦
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Describe the pattern in each sequence. Then find the next two terms of the sequence.
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