payshencec21
payshencec21
27-03-2018
Mathematics
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PLEASE HELP ASAPPPPPPPP
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musiclover10045
musiclover10045
27-03-2018
1st = -5*2^(1-1) = -5*2^0 = -5*1 = -5
4th = -5 *2^(4-1) = -5*2^3 = -5 *8 = -40
8th = -5*2^(8-1) = -5 *2^7 = -5 *128 = -640
Answer is 1st choice
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