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18-02-2020
Mathematics

contestada

The common ratio of a sequence is 1/2. Two terms in the sequence are a5=1 and a8=1/8

first term in the sequence:

recursive rule that describes the sequence:

Respuesta :

amna04352 amna04352

18-02-2020

Answer:

First term is 16

Step-by-step explanation:

Taking common ratio 'r' and first term 'A' ,

The term formula is:

A×[r^(n-1)]

Since r = 1/2, and the fifth term = 1

1 = A×[(1/2)^(5-1)]

1 = A×[(1/2)^4]

1 = A× (1/16)

A = 16

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