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Alona [7]
3 years ago
6

A geometric sequence has u4= -70 and u7=8.75 Find the second term of the sequence.

Mathematics
1 answer:
Kobotan [32]3 years ago
5 0

Answer:

-122.5

Step-by-step explanation:

Difference = 7 - 4 = 3 terms; 8.75 - (-70) = 78.75

1 term → 78.75/3 = 26.25

therefore, u2 = - 70 - 2(26.25) = -122.5

Topic: Patterns + Common difference

If you would like to venture further into mathematics, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

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