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
54
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
Questions16-22•Readtheminutesofthemeetingbelow.•Arethesentences16-
Veryfewpeoplecangetcollegedegreebefore11,butMichaelwasan【B1】____
颅底骨折最主要的诊断依据是()A.颅内压增高表现 B.CT检查 C.腰穿检查
男,48岁,吸烟24年,每天吸烟20支该患者近来经常咳嗽、气短,找到社区卫生服务
A.血容量严重不足 B.血容量轻度不足 C.容量血管过度收缩 D.心输出量
()是协调企业日常生产活动的中心环节。A:生产计划 B:销售计划 C:生产作
牙周炎的“进展前沿”是( )。A.附着性龈下菌斑 B.龈上菌斑 C.非附着
电信通信企业成本的特点有()。A.没有固定成本只有变动成本 B.固定成本在总成
交易验证由支付机构代替银行完成。()
岩石压缩全应力应变曲线反映的岩石物理力学性质特点包括()。 A.当岩
最新回复
(
0
)