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Sveta_85 [38]
3 years ago
6

The first tern of an arithmetic sequence is -3 and the fifteenth term id 53. What is the common difference of the sequence?

Mathematics
1 answer:
arsen [322]3 years ago
5 0
The common difference is 4. U know that the formula is the first term + d(n -1). N-1 is 14 so u know that 14 times a number needs to equal 56 because the first term is -3 and 56-3 is 53. 14 * 4 is 56. So the common difference is 4
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