anonymous
  • anonymous
What is the nth term of this sequence? 1/3, 1/2, 3/5, 2/3, 5/7 A.) n / n-2(n+3) B.) n / n+2 C.) n / 2n+1 D.) n+2 / N-1 Please help! Thank you<3 xoxo
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Heeelp ;~; Pweeeeeezzzz.
anonymous
  • anonymous
you can just plug in the sequence indices to each choice until you get one that matches. \(a_1=\dfrac{1}{3}\\a_2=\dfrac{1}{2}\\a_3=\dfrac{3}{5}\\....\)
anonymous
  • anonymous
Let me try..

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TrojanPoem
  • TrojanPoem
Use the arithmetic rule
TrojanPoem
  • TrojanPoem
r= 1/2 - 1/3 = 3/6 - 2/6 = 1/6 a (first in the sequence) = 1/3 nth term = a + r( n - 1) = 1/3 + 1/6 ( n -1)
TrojanPoem
  • TrojanPoem
Can you do it ? It's hard to do maths on screen.
anonymous
  • anonymous
Waaaah.. ;~: I'm trying
anonymous
  • anonymous
I want to say it's A ... But I'm probably wrong
TrojanPoem
  • TrojanPoem
The arithmetic sequence won't work we don't add the same number each time.
TrojanPoem
  • TrojanPoem
By the way, why don't you use the "dumbs way" ? Put 1 , 2, 3 ,4 the one which gives you the same numbers as the choices is the right one.
TrojanPoem
  • TrojanPoem
B
anonymous
  • anonymous
It's funny how the "dumbs way" helped me hahaha... Thank you for you assistance, sir SmartyPants. :)) <3
TrojanPoem
  • TrojanPoem
Anytime.
anonymous
  • anonymous
sorry, I couldn't remember the formulas for series/sequences lol
TrojanPoem
  • TrojanPoem
Me too I think it can be solved using |dw:1435676869007:dw|
anonymous
  • anonymous
\(\huge \Sigma\)

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