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write an equation for the n th term of the arithmetic sequence then find a10 -6,-9,-12,-15

Sagot :

Podetolaidn

Answer: [tex]a_{10}[/tex] = -33

Step-by-step explanation:

-6, -9, -12, -15

The common difference is -3

d = common difference

Arithmetic sequence formula:

[tex]a_{n}[/tex] = [tex]a_{1}[/tex] + (n - 1) d

[tex]a_{10}[/tex] = -6 + (10 - 1) -3

[tex]a_{10}[/tex] = -6 + 9 × -3

[tex]a_{10}[/tex] = -6 - 27

[tex]a_{10}[/tex] = -33

Answer:

its -30

Step-by-step explanation:

because -15-15=-30

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