Algebra 2: Sequences and Series

posted by .

I have this question and I don't understand what it's asking for. It says evaluate, is it asking for the missing term or what?

The sequence 21, 23, 25, 27, 29, ..., 41 has 11 terms. Evaluate the related series.

* 320
* 341
* 300
* 166

Very confused, any insight on how to solve this would be helpful :)

  • Algebra 2: Sequences and Series -

    In simple terms, for a sequence you would list the terms,
    in a series you would add the terms

    so you want
    21+23+25+ ... + 41

    this is an arithmetic series with
    a = 21, d=2 and n = 11

    the sum of those terms
    using sum = n/2(first term + last term)
    = 11/2(21+41)
    = 341

  • Algebra 2: Sequences and Series -

    The way the question is phrased suggests that not all of it has actually been posted. "Evaluate the related series" doesn't mean anything on its own - at least, not to me. Has your teacher defined a "related series" to be the sum of the individual elements of that series? This is one of those questions where its easy enough to guess what's required - which is what has been written above - but this seems not actually to have been ASKED for!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    help me with sequences problem.So if the sequence is 2,5,10,17,26 +3 +5 +7 +9 1st difference +2 +2 +2 2nd difference then the nth term can be worked out by writing out : n 1 2 3 4 n squared 1 4 9 16 original sequence 2 5 10 17 nth …
  2. Math - Arithmetic Sequences

    The sum of the 4th and the 14th term of an arithmetic sequence equals 22. The 9th term is 4 larger than the 4th term. Calculate the first term of the sequence. I've been trying to solve this for like an hour but I just can't figure …
  3. Math

    I'm learning series and sequences (grade 11). Please check that my steps show I understand what I'm doing/the concept and my answer as well: 5. The consecutive terms of an arithmetic sequences are 3.6, y, 8.2. Find the value of y. …
  4. algebra

    I have 3 questions I need help with. 1) what is the 15th term of the sequence 81,27,9,... 2) what is a possible value for the missing term of the geometric sequence 39,_,975,_ 3) what is the sum of the finite arithmetic series (-5)+0+5+10+..+65
  5. Algebra

    True or False 1. – 5, – 5, – 5, – 5, – 5, … is an arithmetic sequence. 2. In an arithmetic sequence, it is possible that the 13th term is equal to its 53rd term. 3. In an arithmetic sequence, the common difference is computed …
  6. Sj

    Mathematics......Under number patterns-Geometric series If a question goes.determine the expression for the nth term of the following sequence if the a) 4th term is 24 and the 7th term is 192 in a geometric sequence.what formula do …
  7. Maths: Sequences need help

    The nth term of a sequences of v1,v2,v3 is given by Vn=6 2^n (1):show that for all value of n>1 Vn1=2(Vn-3)?
  8. Sequences and Series

    use the iterative rule to find the eighth term in the sequence an = 25 − 3n. 176 49<------ My answer 8 1
  9. maths

    The fifth term of an arithmetic sequence is 23 and the 12th term is 72. And they say first question 1.determine the first three terms of the sequences and the nth term. 2.what is the value of the 10th term. 3. Which term has a value …
  10. sequences and Series

    If 5 times the 5th term is equal to the 6 times the 6th term of an arithmetic sequence then its 11th term is.......

More Similar Questions