The sum of the first n terms of an arithmetic sequence is Sn = bn – 2n. Find b if
the tenth term is -16.​

2 thoughts on “The sum of the first n terms of an arithmetic sequence is Sn = bn – 2n. Find b if<br />the tenth term is -16.​”

1. Answer:

   b= -14

   Step-by-step explanation:

   tn = sn-sn-1

   -16 = b-2

   b=-14

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2. Answer:

   0.4

   Step-by-step explanation:

   Sn=bn-2n

   S10=b10-2.10=-16

   =b10=20-16

   =b10=4

   =b=4/10=0.4

   Hope it helps. Mark as Brainliest!

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