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12345 [234]
3 years ago
12

Given the sequence 1, 9, 25, 49, 81, ..., find the explicit formula. A. an=(2n−1)2an=(2n−1)2 B. an=n2−1an=n2−1 C. an=−4n+2an=−4n

+2 D. an=−2n+2
Mathematics
1 answer:
IrinaK [193]3 years ago
7 0
F(n) = {f(1) = 1
         {f(n) = (2n - 1)
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Answer:

BC = 26

Step-by-step explanation:

since B is the midpoint of AC, then AB = BC

AC = 8x - 20 & AB = 3x - 1

AC = AB + BC or 2AB

8x - 20 = 2(3x - 1)

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subtract 6x form each side

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