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Mathematics 17 Online
OpenStudy (anonymous):

What is the 19th term of the arithmetic sequence 13,21,29...? Answers to choose from a)157 b)165 c)173 d)181

OpenStudy (anonymous):

@spectrum

OpenStudy (anonymous):

Hii @Algebraic!

OpenStudy (anonymous):

\[a _{n} = a _{1} + (n – 1)d\]

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

d is the common difference between terms (8) a1 is the first term an is the nth term (n=19)

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

Hii @Spectrum

OpenStudy (anonymous):

it is plus 8 13 + 8(19) = 165

OpenStudy (anonymous):

thankyou

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