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anonymous
 one year ago
Write the explicit formula that represents the geometric sequence 2, 8, 32, 128
anonymous
 one year ago
Write the explicit formula that represents the geometric sequence 2, 8, 32, 128

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freckles
 one year ago
Best ResponseYou've already chosen the best response.1first identify the first term: this is 2 now identify your ratio (just a little more work): divide term by previous term

freckles
 one year ago
Best ResponseYou've already chosen the best response.1That is take any term and its very previous term and divide that term by its previous term

freckles
 one year ago
Best ResponseYou've already chosen the best response.1for example any of these will give your the common ratio: 8/2 32/8 128/32 that is if this is indeed a geometric sequence which the instructions have identified it as one so all of those will be spit out the same number which is....

freckles
 one year ago
Best ResponseYou've already chosen the best response.1Now just put everything in \[a_n=\text{ first term} \cdot \text{ (common ratio)} ^{n1}\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.1yes the whole n1 should be a part of the superscript though like this: a_n=2(4)^(n1) or if I type in pretty latex: \[a_n=2(4)^{n1}\]
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