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26 June, 23:21

Find 1st - 4th term and then the 10th term for:

A: rule is n^2+3

B: rule is 2n^2

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Answers (2)
  1. 26 June, 23:27
    0
    A

    n^2+3

    1. 1^2+3 = 4

    2. 2^2+3 = 7

    3. 3^2+3 = 12

    4. 4^2+3 = 19

    5. 10^2+3 = 103

    B

    2n^2

    1. 2*1^2=2

    2. 2*2^2 = 8

    3. 2*3^2 = 18

    4. 2*4^2 = 32

    5. 2*10^2 = 200
  2. 26 June, 23:35
    0
    see below

    Step-by-step explanation:

    n^2+3

    n=1: 1^2+3 = 1+3 = 4

    n=2: 2^2+3 = 4+3 = 7

    n=3: 3^2+3 = 9+3 = 12

    n=4: 4^2+3 = 16+3 = 19

    n=10: 10^2+3 = 100+3 = 103

    2n^2

    n=1: 2*1^2 = 2*1 = 2

    n=2: 2*2^2 = 2*4 = 8

    n=3: 2*3^2 = 2*9 = 18

    n=4: 2*4^2 = 2*16 = 32

    n=10: 2*10^2 = 2*100 = 200
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