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

游客2025-02-24 6

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,

SpeakerA:IwanttotakepartintheschoolTalentShow.SpeakerB:That’snic

Thedramaschool______placestostudentswhocanshowtalent.A、donatesB、offers

Thespeechcontestwillgivehimanopportunityto______histalent.A、denyB、deci

Let’sfinishourhomeworkinafewseconds;it’stimewe______.A、playedfootbal

AsecondEinsteinnotewasalsosoldattheauction.爱因斯坦的第二张便条也在拍卖会上被卖出。

Inasampleofassociatesatalawfirm,30percentaresecond-yearassociates,

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]Whi

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]Acc

Theprimaryfunctionofthesecondparagraphofthepassageisto______[br]The

[originaltext]W:Areyoubusythisevening?I’mgoingovertotheInternational

Concerningmoneyoranythingelse,conflictsbetweenhusbandandwifeusuall

Thelistenerhasagivenamountofenergytoexpendincompletingthecommun

曲线的渐近线有（）A.一条 B.二条 C.三条 D.四条

下图所表示的实际地形为（ ）。 A.山脊 B.山谷 C.山凹 D.无法

挥发油的沸点范围大多在A.50～200℃ B.30～300℃ C.40～30

某药厂生产的复方丹参滴丸，为现今临床常用的心血管系统疾病药物，组成包括丹参、三七

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