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

游客2024-01-12 38

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 56

解析

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

______ofthestudentsinourclassarefromthenorth.A、TwoninthB、Secondnint

SpeakerA:IwanttotakepartintheschoolTalentShow.SpeakerB:That’snic

________YellowRiverisknowntobe________secondlongestriverinChina.A、The;

Inasampleofassociatesatalawfirm,30percentaresecond-yearassociates,

Ifacopiermakes3copiesevery4seconds,thencontinuesatthisrate,howman

Acomputercanperform1，000，000calculationspersecond．Atthisrate，howmanyh

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]Whi

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]Acc

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

SonsandLoversisanautobiographicalnovelof______.A、D.H.LawrenceB、Thomas

Betweenwhattimesistheroadtrafficlightest?[br]airconditioning[original

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FromDr.R.S.ScorerofBritain’sImperialCollegeofSciencecomesthela

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2020年12月，我国网民规模达9.89亿，较2020年3月增长8540万。其中

市场集中度：指某行业在市场结构中的集中程度，它用来衡量企业的数目和相对规模的差异

户外活动时，忽然下起了小雨，王老师便带着幼儿回到教室，只见三五名幼儿趴在窗前，望

YellowRiverisknowntobesecondlongestriverinChina.A、The;