anthony4985
anthony4985 anthony4985
  • 22-06-2018
  • Mathematics
contestada

Write an equation for the nth term of the arithmetic sequence.
Then find a50.

3, 9, 15, 21, . . .

an= 6n-3
a50= ?

Respuesta :

cynthiatershner
cynthiatershner cynthiatershner
  • 22-06-2018
6(n-1)+3
a50= 297

Of course, your formula would work as well..
Answer Link
lyndalau86
lyndalau86 lyndalau86
  • 07-10-2019

Answer:

an = 3 + 6 (n-1)

the 50th term is 297

Step-by-step explanation:

We know that the formula used to find the nth term of a sequence is given by:

an = a₁ + d(n - 1)

where an is the nth term, a₁ is the first term and d is the common difference.

In this case a₁ = 3, d = 6 and n =50.

Therefore:

an = 3 + 6(49) = 3 + 294 = 297.

Answer Link

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