首页
登录
职称英语
How many different five-digit positive integers can be formed using the digits 1
How many different five-digit positive integers can be formed using the digits 1
游客
2024-01-12
75
管理
问题
How many different five-digit positive integers can be formed using the digits 1, 2, 3,4, 5,6, and 7 if none of the digits can occur more than once in the integer?
选项
答案
2,520
解析
This example asks how many ways there are to order 5 integers chosen from a set of 7 integers. According to the counting principle above, there are(7)(6)(5)(4)(3)= 2,520 ways to do this. Note that this is equal to
转载请注明原文地址:https://tihaiku.com/zcyy/3355383.html
相关试题推荐
Gall’shypothesisoftherebeingdifferentmentalfunctionslocalizedindiffere
Somebatcaves,likehoneybeehives,haveresidentsthattakeondifferentdutie
Althoughmanyartpatronscanreadilydifferentiateagooddebenturefromanund
Althoughmanyartpatronscanreadilydifferentiateagooddebenturefromanund
TheproductoftwoconsecutivepositiveintegersCANNOTbeA、aprimenumberB、div
Theaverage(arithmeticmean)of3differentpositiveintegersisequaltothe
[img]ct_gre5image040[/img]Thefigureaboveshowsalargesquareformedbyfitti
Theintegersbetween1and100,inclusive,areputinlistAiftheyaredivisib
Ifn=pqr,wherep,q,andrarethreedifferentpositiveprimenumbers,howma
Oneintegerwillberandomlyselectedfromtheintegers11to60,inclusive.Wha
随机试题
•Readthearticlebelowaboutacriticalconcerninmergerandacquisitionstra
HealthclubcustomerresearchExampleName:DanielTaylorOccupation:
HowoldwasLeonardodaVinciwhenhemovedtoMilan?[br][originaltext]Le
Hetriedto______hisinvolvementinthisscheme,buthefinallygaveinandco
ThemysteryoftheexpansionofseaicearoundAntarctica,atthesametime
关于影响期货价格因素的说法,正确的有()。A、经济周期因素是影响期货市场价格走势的重要因素B、主要国际流通货币的汇率波动会影响期货市场价格走势C、股
GallaudetUniversitycurrentlydoesnotallowstudentstokeeppetsinthei
在电力系统中发生铁磁谐振时,谐振回路中电感参数是受控的。
刘司昌主要的山东快书表演有()。A.《红大院》 B.《捞铜牛》 C.《独龙冈
(2018年真题)在三大货币政策工具中,既可以调节利率水平,又可以调节利率结构的
最新回复
(
0
)