leannebailey1212 leannebailey1212

26-01-2021
Mathematics

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Which formula represents the nth term of arithmetic sequence 2, 5, 8, 11, ...?
Formula: An = A1 + (n - 1)d

Which formula represents the nth term of arithmetic sequence 2 5 8 11 Formula An A1 n 1d class=

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asmaNasr asmaNasr

26-01-2021

Answer:

B

Step-by-step explanation:

[tex]a1 = 2 \\ a2 = 5 \\ d = a2 - a1 = 5 - 2 = 3[/tex]

[tex]an = 2 + (n - 1)3 \\ an = 2 + 3n - 3 \\ an = 3n - 1[/tex]

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