landonlongstrath landonlongstrath

30-12-2020
Mathematics

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What is the common difference for this arithmetic sequence?
45, 39, 33, 27, 21, .
O A. 45
OB. 6
OC. 39
OD. -6

Respuesta :

jesusm1 jesusm1

30-12-2020

Answer:

Concept: Series

Start by taking the first and second An and finding the difference
You can then prove your result by taking any ordinary An and subtracting it by An-1
Hence 45-39= 6
To prove our result of 6; 39-33= 6
Hence the common difference is
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