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ohaa [14]
2 years ago
15

If 2 + 2^2 + 2^3 +...+ 2^n = 510 then n = ?

Mathematics
2 answers:
jonny [76]2 years ago
5 0

Answer:

N= 8

Step-by-step explanation:

Bumek [7]2 years ago
3 0

Answer:

n = 8

Step-by-step explanation:

This Geometric series. r = 2 and a = 2

S_{n}= \dfrac{a(r^{n}-1)}{r-1}\\\\\\\dfrac{2(2^{n}-1)}{2-1}=510\\\\\dfrac{2*(2^{n}-1)}{1}=510\\\\2*(2^{n}-1) = 510\\\\2^{n-1}=\dfrac{510}{2}\\\\2^{n} - 1 = 255\\\\2^{n}=255+1\\\\2^{n} = 256\\\\2^{n} =2^{8}

n = 8

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VARVARA [1.3K]

Probability helps us to know the chances of an event occurring. There are 8 different scenarios possible.

<h3>What is Probability?</h3>

Probability helps us to know the chances of an event occurring.

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2 years ago
(-3; -3) and (8-3). What is the slope​
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Answer:

Step-by-step explanation:

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6 0
3 years ago
Bilal's fishing line was on a spool with a radius of 4cm. Suddenly, a fish pulled on the line, and the spool spun 16 times befor
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First, I'd like to say that this question is flawed because the diameter of the spool changes as you pull the line out. Some would argue it's negligible I suppose.

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Hi, did you attach the picture for it?
6 0
3 years ago
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Answer:

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<em>hope this helps</em><em> </em><em><</em><em>3</em>

7 0
3 years ago
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