A talent contest has 8 contestants. Judges must award prizes for first, second,

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问题 A talent contest has 8 contestants. Judges must award prizes for first, second, and third places, with no ties.
(a)In how many different ways can the judges award the 3 prizes?
(b)How many different groups of 3 people can get prizes? [br]

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答案 336

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A talent contest has 8 contestants. Judges must award prizes for first, second,

Themanhasaspecialtalentforartandis______ofamusician.A、anybodyB、any

Inasampleofassociatesatalawfirm,30percentaresecond-yearassociates,

BenandAnnareamong7contestantsfromwhich4semifinalistsaretobeselecte

Acomputercanperform1，000，000calculationspersecond．Atthisrate，howmanyh

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]Whi

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

AnAmericanmanufacturerofracingbikesreporteda1996second-quartergrossin

Thedirectorofasecondaryschoolwheremanystudentswerehavingsevereacadem

21.DuringtheSecondWorldWar,about375,000civiliansdiedintheUnitedSta

[originaltext]Tom:Kelvin,couldyoutellmesomethingaboutthebars?Ihaven

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