If an integer is randomly selected from all positive 2-digit integers, what is t

游客2025-02-24 38

问题 If an integer is randomly selected from all positive 2-digit integers, what is the probability that the integer chosen has
(a)a 4 in the tens place?
(b)at least one 4 in the tens place or the units place?
(c)no 4 in either place? [br]

选项

答案 4/5

解析

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If an integer is randomly selected from all positive 2-digit integers, what is t

Whichoftheintegers2,9,19,29,30,37,45,49,51,83,90,and91areprime

(a)Whatistheprimefactorizationof372?(b)Whatarethepositivedivisorsof3

Whenthepositiveintegernisdividedby3,theremainderis2andwhennisdi

Theintegeraisevenandtheintegerbisodd.Foreachofthefollowingintege

LetSbethesetofallpositiveintegersnsuchthatn2isamultipleofboth2

Theintegervisgreaterthan1.Ifvisthesquareofaninteger,whichofthe

If[img]2014m9x/ct_egreqm_egreqjs_0044_20148[/img]isaneveninteger,whichofth

Ifa

Ifjandkareevenintegersandj

Twodifferentpositiveintegersxandyareselectedfromtheoddintegersthat

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ConsumerDemandandDevelopmentofGreenCarsThedayautomakers

Cosmeticsarenowmorepopularthaneverbefore.Theagencyresponsiblefor

在预作用系统中，报警阀是通过（）开启和关闭管网的水流，传递控制信号至控制系统。

X线看到胸腔积液征象的积液量为A.100ml B.500ml C.200ml

按尺肤凹而不起的临床意义是()A.泄泻 B.热证 C.瘀血 D.鼓胀

关于红蝴蝶疮，错误的描述是A.系统性红斑狼疮多见于20～40岁女性 B.属结缔

出生时就存在且永不消失的反射是A.拥抱反射 B.吞咽反射 C.握持反射 D

致密性骨炎的X线表现A.以病原牙为中心，骨质弥漫性破坏，边界不清 B.颌骨膨胀