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Mathematics 18 Online
OpenStudy (anonymous):

What is the 25th term of this arithmetic sequence? 3, 9, 15, 21, 27, …

OpenStudy (arindameducationusc):

use S=(2a+(n-1)d)

OpenStudy (arindameducationusc):

a=3, d=6and n =25

OpenStudy (arindameducationusc):

150 should be the answer

OpenStudy (anonymous):

thanks

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