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2 years ago

Write the explicit formula for the following sequence. 2, 5, 8, 11, ...

Mathematics

2 answers:

Alexxandr [17]2 years ago

6 0

Answer:

add by 3

Step-by-step explanation:

11-8=3, 8-5=3, 5-2=3

strojnjashka [21]2 years ago

5 0

Answer:

First let's first find the common difference

d = 5 - 2 = 3

First term a = 2

The formula is

U(n) = a + (n - 1)d where n is the number of terms

= 2 + (n - 1)3

= 2 + 3n - 3

= 3n - 1

Hope this helps.

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$S^2=\frac{\sum (x_i - \bar{x})^2}{n-1}$

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$S^2$ = sample variance

$x_i$ = the value of the one observation

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For given question,

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So, $\bar{x}=31$

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Learn more about the variance here:

brainly.com/question/13673183

#SPJ4

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