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1. |
Determine the sum of an arithmetic series where n = 45, a1 = 14.3, and an = 80.3. |
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A. |
4257 |
B. |
3627.8 |
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C. |
2128.5 |
D. |
3613.5 |
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Hint |
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2. |
What is Sn if a1 = 27.5, d = 1.5, and n = 35? |
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A. |
1855 |
B. |
1245 |
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C. |
98,175 |
D. |
2152.5 |
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Hint |
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3. |
What are the first three terms of the arithmetic series if a1 = -1,
an = -115, and Sn = -1160? |
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A. |
-1, -7, -13 |
B. |
-115, -121, -127 |
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C. |
-1160, -1166, -1172 |
D. |
20, 14, 8 |
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Hint |
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4. |
 |
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A. |
430 |
B. |
820 |
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C. |
838.5 |
D. |
860 |
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Hint |
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5. |
Which of the following is not a series? |
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A. |
6 – 3 – 3 – 3 – … |
B. |
8 + 2 + 2 + 2 + … |
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C. |
 |
D. |
5 + 7 + 9 + 11 + … |
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Hint |
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