johnaragundi johnaragundi
  • 03-04-2019
  • Mathematics
contestada

What is the 101st term in the sequence 876, 869, 862, ...?

1583

176

1576

169

Respuesta :

TaeKwonDoIsDead
TaeKwonDoIsDead TaeKwonDoIsDead
  • 03-04-2019

Answer:

176

Step-by-step explanation:

We see that it is an arithmetic sequence since we are subtracting the same number to a term to get the next term. So 876 - 7 = 869  &  869 - 7 = 862.

So the common difference d is -7

and the first term, a is 876

The nth term of an arithmetic sequence is given by  a + (n-1)d

where n would be 101, since we want to figure 101st term.

So:

[tex]a+(n-1)d\\876+(101-1)(-7)\\876+(100)(-7)\\=176[/tex]

Correct answer is the 2nd choice, 176

Answer Link

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