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amiechap12
31.03.2020 •
Mathematics
12. An arithmetic sequence begins -40, -29, -18, -7, What is the 2009th term in the
sequence?
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Ответ:
-22128
Step-by-step explanation:
an= the nth term in the sequence
a1= the first term in the sequence
d= the common difference between terms
so... subtract -40 and -29
Solve
-22128
Ответ:
15
Step-by-step explanation:multiples of 3 and 5 and the LCM of 5 and 3 is 15