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sydneyyy

  • 3 years ago

What conjecture can you make about the sum of the first 10 positive even numbers? A. The sum is 9 · 10. B. The sum is 10 · 10. C. The sum is 11 · 12. D. The sum is 10 · 11.

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  1. sydneyyy
    • 3 years ago
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  2. cwrw238
    • 3 years ago
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    the sum of n numbers = n(n+1)

  3. cwrw238
    • 3 years ago
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    so if n = 10 , n(n+1) = ?

  4. sydneyyy
    • 3 years ago
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    thanks

  5. cwrw238
    • 3 years ago
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    yw

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