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Each term in a geometric sequence can be found by multiplying the previous term by the common ratio. Set up equations with this in mind.
B
Recall that each term in a geometric sequence can be found by multiplying the previous term by the common ratio, r. In this case, we are give the eighth and tenth terms.
Term | Value |
---|---|
8 | 392 |
9 | 392r |
10 | 392r⋅r=440 |
Term | Value |
---|---|
4 | a4 |
5 | a4(755) |
6 | a4(755)2 |
7 | a4(755)3 |
8 | a4(755)4=392 |