Find the Fifth Term and the Nth Term of the Geometric

question 169

Multiple Choice

Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.
- $$a = 7 ; r = - 2$$

• A) \(\mathrm { a } _ { 5 } = - 56 ; \mathrm { a } _ { \mathrm { n } } = 7 \cdot ( - 2 ) ^ { \mathrm { n } }\)
• B) \(\mathrm { a } _ { 5 } = 112 ; \mathrm { a } _ { \mathrm { n } } = 7 \cdot ( - 2 ) ^ { \mathrm { n } }\)
• C) \(a _ { 5 } = 112 ; a _ { n } = 7 \cdot ( - 2 ) ^ { n - 1 }\)
• D) \(a _ { 5 } = - 56 ; a _ { n } = 7 \cdot ( - 2 ) ^ { n - 1 }\)

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Definitions:

Rate of Return

A percentage representing the gain or loss on an investment over a specified period, relative to its cost.

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A determination that a result from data analysis is likely not due to chance at a predetermined level of significance.

Observation Period

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