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Mekhanik [1.2K]
3 years ago
12

He recursive formula for a geometric sequence is an = 2an – 1 with an initial value of a1 = 1/88. What is the explicit formula f

or the sequence?
A. an = 1/8(2)n + 1
B. an = 1/8(2)n – 1
C. an = 1/8(4)n – 1
D. an = 1/8(4)n + 1
Mathematics
1 answer:
ahrayia [7]3 years ago
5 0
B is the answer or d
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One <em>possible answer</em> is:

9×(2+3)

Explanation:

First we find the sum of 18 and 27. 18+27 = 45.

Next we find the GCF of 18 and 27. We do this by finding the prime factorization of each:

18 = 2*9

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Thus, 27 = 3*3*3

We want the common factors; there are 2 3's in common, so 3*3 = 9 is the GCF. This makes the product 9×( ). The missing number would be 5, since 9*5 = 45. Writing this as a sum, we can use 2+3; this gives us 9×(2+3).

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