首页
登录
职称英语
Which of the following integers CANNOT be expressed as the sum of two prime numb
Which of the following integers CANNOT be expressed as the sum of two prime numb
游客
2025-02-23
7
管理
问题
Which of the following integers CANNOT be expressed as the sum of two prime numbers?
选项
A、8
B、9
C、10
D、11
E、12
答案
D
解析
Trying to write each answer choice as a sum of two prime numbers by trial and error, you get:
Choice A: 8 = 3 + 5
Choice B: 9 = 2 + 7
Choice C: 10 = 3 + 7
Choice D: 11 = 1 +10 = 2 + 9 = 3 + 8 = 4 + 7 = 5 + 6
Choice E: 12 = 5 + 7
Of the answer choices given, only 11 cannot be expressed as the sum of two prime numbers. The correct answer is Choice D.
This explanation uses the following strategy.
Strategy 10: Trial and Error
转载请注明原文地址:https://tihaiku.com/zcyy/3970051.html
相关试题推荐
Ifx>0,whichofthefollowingisequalto1.25percentofx?[img]2014m9x/ct_e
ListKconsistsofthenumbers-10,-5,0,5,and10.Whichofthefollowinglis
Whichofthefollowingisclosesttotheaverage(arithmeticmean)numberofcardi
Whichofthefollowingisclosestto[img]2015m7x/ct_egreqm_egreqjs_0069_20153[/i
Ifjandkareevenintegersandj
If10xequals0.1percentof10y,wherexandyareintegers,whichofthefollo
Twodifferentpositiveintegersxandyareselectedfromtheoddintegersthat
Itxandyareintegersandx=[img]2015m7x/ct_egreqm_egreqjs_0043_20153[/img],
Iftisanintegerand8m=16t,whichofthefollowingexpressesmintermsof
Fortherectangularsolidbelow,findthefollowing.(a)Surfaceareaofthesoli
随机试题
Note-TakingI.Whytotakenotes?1)Notesareanaidto
[originaltext]M:Doyouknowthethingthat’salwaysstruckmeasoddaboutopi
A—PurchasecontractB—MarketresearchC—Competitiveadvantage
WhatIfACollegeEducationJustIsn’tforEveryone?[A]Longbef
在某PC上运行ipconfig/all命令得到如下结果,本机IP地址的租约期为
具体问题具体分析所依据的辩证法原理是()。 A.矛盾的同一性 B.矛盾的斗争
下列哪种脉象不主实证A.革脉 B.滑脉 C.结脉 D.紧脉 E.弦脉
共用题干 Ford1Ford'sgreatstrengthwasth
关于咀嚼片叙述正确的是A.咀嚼片常用于维生素类、解热药和治疗胃部疾患的氢氧化铝、
(2011年真题)下列情形中,属于施工作业人员的安全生产义务的是()A.对本单
最新回复
(
0
)