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3 years ago

The first 5 terms of a sequence are shown below:

Mathematics

1 answer:

nirvana33 [79]3 years ago

6 0

Step-by-step explanation:

To find the formula for the nth term ,

First , find the common difference or common ratio.

Common difference =

$T_2-T_1 \\ - 2 - 3 \\ = - 5$

Common ratio =

$T_2/T_1 \\ \frac{ - 2}{3}$

The common difference applies to the other given numbers for example :

$T_3- T_2 = - 7 - ( - 2) \\ = - 7 + 2 = - 5$

this proves that it is an arithmetic sequence and the given formula for the nth term of an arithmetic sequence is

T_n =a(n-1)d

Where n = no of terms

a= first term

d= common difference

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Troyanec [42]

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Step-by-step explanation:

In a regular n-side polygon:

All sides are equal in lengths
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∵ The measure of an interior angle of a regular polygon is 120°

∵ The sum of interior angle and exterior angle at a vertex = 180°

∴ The measure of each exterior angle = 180 - 120

∴ The measure of each exterior angle = 60°

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You can learn more about polygons in brainly.com/question/6281564

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If G(x) = 3x + 1, then G -1(1) is 4 1/3 0

Eduardwww [97]

Answer:

Step-by-step explanation:

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