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1. |
What is the next term in the sequence 1, 3, 9, 27, 81, ...? |
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A. |
243 |
B. |
108 |
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C. |
82 |
D. |
27 |
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Hint |
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2. |
Determine whether the sequence 3, 12, 48, 192 is geometric. If so, find its common ratio. |
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A. |
geometric, r = 4 |
B. |
geometric, r = 9 |
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C. |
geometric, r = 3 |
D. |
not geometric |
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Hint |
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3. |
Find the next two terms of the geometric sequence 50, 40, 32, … |
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A. |
26, 22 |
B. |
25.6, 20.48 |
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C. |
28.5, 25.52 |
D. |
24, 16 |
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Hint |
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4. |
Find the geometric mean in the sequence 4, , 196. |
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A. |
7 only |
B. |
7 or –7 |
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C. |
28 only |
D. |
28 or –28 |
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Hint |
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5. |
Suppose that the geometric mean of two numbers is 48, and the first number is 12. What is the second number? |
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A. |
192 |
B. |
24 |
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C. |
84 |
D. |
96 |
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Hint |
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