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1. |
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. |
2152.5 |
D. |
98,175 |
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Hint |
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2. |
Find the first three terms of the arithmetic series in which a1 = 6,
an = 201, and Sn = 4140. |
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A. |
6, 5, 40 |
B. |
5, 10, 15 |
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C. |
6, 46, 86 |
D. |
6, 11, 16 |
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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. |
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10; 55 |
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D. |
10 + 1 + 2 + 3 + 4 + 5; 25 |
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Hint |
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4. |
 |
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A. |
–7 + (-8) + (-9) + (-10); -34 |
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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; -2 |
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Hint |
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5. |
 |
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A. |
820 |
B. |
430 |
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C. |
838.5 |
D. |
860 |
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Hint |
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