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umka2103 [35]
3 years ago
8

The first figure of the Sierpinski

Mathematics
2 answers:
inysia [295]3 years ago
6 0

Answer:

9841

Step-by-step explanation:

Each time the number of shaded triangles is multiplied by 3.  So this is a geometric series:

an = 1 (3)ⁿ⁻¹

The sum of the first n terms of a geometric series is:

S = a₁ (1 - rⁿ) / (1 - r)

Here, a₁ = 1, r = 3, and n = 9.

S = 1 (1 - 3⁹) / (1 - 3)

S = 9841

PolarNik [594]3 years ago
3 0

Answer:

on e2020 its 1 option

Step-by-step explanation:

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The x-value of the end at b is 20 and it's 18 at the middle.
x has decreased by 2 in the course of 1/2 of the line.
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