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12345 [234]
3 years ago
10

Determine whether the sequence below is a geometric sequence and, if so, find a formula that describes the sequence. 1, 3, 9, 27

, 81, …
Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
3 0
This is geometric  with a common ratio of 3   (3/1 = 3 and 9/3 = 3 etc)
the formula for the nth term is 
an = 3^(n-1)
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In the problem, two legs measurement were given such as:
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We need to solve for the third leg. Since it is a right triangle, we can use Pythagorean theorem in solving the missing leg:
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When we assume that the third leg is the "c", we can for the value such as:
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When we assume that the third is either "a" or "b":
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