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3 years ago

8

The first figure of the Sierpinski

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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What are the domain and range of the function f(x)=(√x-7)+9?

Yanka [14]

Answer:

the domain of the function f(x) is $x\ge 7$

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Step-by-step explanation:

Consider the parent function $y=\sqrt{x}.$

The domain og this function is $x\ge 0,$ the range of this function is $y\ge 0.$

The function $f(x)=\sqrt{x-7}+9$ is translated function $y=\sqrt{x}$ 7 units to the right and 9 units up, so

the domain of the function f(x) is $x\ge 7$

the range of the function f(x) is $f(x)\ge 9$

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kkurt [141]

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3 years ago

Which are rational and irrational? Thanks in advance :)

DochEvi [55]

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Step-by-step explanation:

Rational numbers:

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3 years ago