arithmetic sequence 3
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  • Question 1
    180 seconds
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    Q.

    Find the sum of the arithmetic series described:

    2 + (-2) + (-6) + (-10)..., S10

    answer choices

    -160

    -328

    -320

    -336

  • Question 2
    180 seconds
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    Q.

    The sequence 28, 34, 40, 46, 52, ..., 88 has 11 terms. Find the sum of the 11 terms.

    answer choices

    550

    638

    610

    288

  • Question 3
    30 seconds
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    Q.

    Evaluate: x=211(5x2)\sum_{x=2}^{11}\left(5x-2\right)  

    answer choices

    305

    503

    53

    8

  • Question 4
    30 seconds
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    Q.

    Expand:  k=36(2k1)\sum_{k=3}^6\left(2k-1\right)  

    answer choices

    4, 6, 8, 10

    4, 6, 8

    5, 7, 9, 11

    5, 7, 9

  • Question 5
    300 seconds
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    Q. What is the sum of the first 50 terms of the series 2 + 17 + 32 + 47 + ...?
    answer choices
    1,600
    18,235
    18,475
    19,125
  • Question 6
    300 seconds
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    Q.
    answer choices
    149
    11,200
    5,600
    140
  • Question 7
    300 seconds
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    Q. Find the 32nd term of this sequence.
    9, 4, -1, -6, -11, ...
    answer choices
    81
    -34
    -146
    -225
  • Question 8
    180 seconds
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    Q.

    Find the sum.

    24+48+72+...+480


    *Hint: Find out what term number 480 is first. Then find the sum.*

    answer choices

    5280

    9576

    10080

    5040

  • Question 9
    120 seconds
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    Q.

    Find the sum of the first 100 odd numbers

    answer choices

    5000

    2500

    2525

    3250

  • Question 10
    180 seconds
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    Q. Evaluate the arithmetic series described:
    11 + 18 + 25 + 32..., S7
    answer choices
    225
    450
    384
    224
  • Question 11
    180 seconds
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    Q. Evaluate the arithmetic series described:
    28 + 38 + 48 + 58..., S7
    answer choices
    1644
    812
    406
    3290
  • Question 12
    180 seconds
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    Q. Evaluate the arithmetic series described:
    0 - 7 - 14 - 21..., S17
    answer choices
    -959
    -1904
    -952
    -1918
  • Question 13
    900 seconds
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    Q. You are sitting in row 23 and notice there are 65 seats in your row. The row in front of you has 63 seats and the row behind you has 67 seats. There are 42 rows in the auditorium. How many seats does the auditorium contain? (Hint: Find the number of seats in the first and last rows)
    answer choices
    2,604
    2,163
    2,422
    2,803
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