Chocolateisgr8 Chocolateisgr8

15-03-2017
Mathematics

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help!!!! I know the answer for #22 is -2730 but I don't know how to get it?

help I know the answer for 22 is 2730 but I dont know how to get it class=

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wolf1728 wolf1728

22-03-2017

You are to sum
-1 * 2^1
-1 * 2^3
-1 * 2^5
-1 * 2^7
-1 * 2^9
-1 * 2^11

which equals
-2
-8
-32
-128
-512
-2,048

which totals -2,730

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