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Cloud [144]
3 years ago
11

The sixth term is 22 and the common difference is six what is the fiftieth term

Mathematics
1 answer:
IrinaK [193]3 years ago
7 0
Hey! :)

The general formula for an arithmetic sequence is: a(n) = a + d(n - 1) 
a : first term d : common difference (6) n : number of the term 
In your example, you are told the 6th term is 22. a(6) = a + 6(6 - 1) = 22 a + 30 = 22 a = 22 - 30 a = -8 
So now you have the general formula: a(n) = -8 + 6(n - 1) 
If you like you can simplify it: a(n) = -8 + 6n - 6 a(n) = 6n - 14 
Then you can plug in n = 50: a(50) = 6(50) - 14 = 300 - 14 = 286
So your answer is 286

Hope this helps! :)
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\displaystyle\lim_{n\to\infty}\frac1n\sum_{i=1}^n\left(\frac in\right)^3=\lim_{n\to\infty}\frac{n^2(n+1)^2}{4n^3}=\boxed{\frac14}

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3 years ago
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butalik [34]

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8

Step-by-step explanation:

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3 years ago
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Nikitich [7]

Answer:

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Step-by-step explanation:

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