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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. |
2128.5 |
B. |
3627.8 |
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C. |
3613.5 |
D. |
4257 |
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Hint |
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2. |
What are the first three terms of the arithmetic series if a1 = -1,
an = -115, and Sn = -1160? |
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A. |
-1160, -1166, -1172 |
B. |
-115, -121, -127 |
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C. |
-1, -7, -13 |
D. |
20, 14, 8 |
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Hint |
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3. |
 |
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A. |
10 + 20 + 30 + 40 + 50; 150 |
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B. |
11 + 12 + 13 + 14 + 15; 65 |
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C. |
10 + 1 + 2 + 3 + 4 + 5; 25 |
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D. |
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10; 55 |
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Hint |
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4. |
 |
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A. |
–7 + 8 + (-9) + 10; 2 |
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B. |
7 + 8 + 9 + 10; 34 |
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C. |
7 – 8 + 9 – 10; -2 |
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D. |
–7 + (-8) + (-9) + (-10); -34 |
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Hint |
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5. |
 |
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A. |
838.5 |
B. |
820 |
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C. |
860 |
D. |
430 |
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Hint |
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