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抛物线y=-(x-1)²+3与y轴交点坐标为
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抛物线y=x2-4x+与x轴的一个交点的坐标为10则此抛物线与x轴的另一个交点的坐标是______.
已知抛物线y=ax2+bx+c经过点A.-10且经过直线y=x-3与x轴的交点B.及与y轴的交点C.
对于抛物线y=x2-4x+31它与x轴交点的坐标为与y轴交点的坐标为2在坐标系中出此抛物线3观察图像
已知抛物线的解析式为y=x2﹣2x﹣3.1将其化为y=ax﹣h2+k的形式并直接写出抛物线的顶点坐标
抛物线于x轴的一个交点坐标为(﹣2,0)
抛物线与y轴的交点坐标为(0,6)
抛物线的对称轴是直线x=0
抛物线在对称轴左侧部分是上升的
若抛物线y=x2-2x+c与y轴的交点坐标为0-3则下列说法不正确的是
抛物线的开口向上
抛物线的对称轴是直线x=1
当x=1时,y的最大值为-4
抛物线与x轴的交点坐标为(-1,0),(3,0)
抛物线与x轴的一个交点坐标为(﹣2,0)
抛物线与y轴的交点坐标为(0,6)
抛物线的对称轴是直线x=0
抛物线在对称轴左侧部分是上升的
若抛物线y=x2-2x+c与y轴的交点为0-3则下列说法不正确的是
抛物线开口向上
抛物线的对称轴是x=1
当x=1时,y的最大值为-4
抛物线与x轴的交点为(-1,0),(3,0)
抛物线y=-x2+m-1x+m与y轴交于点03.1求出m的值并画出这条抛物线2求抛物线与x轴的交点和
抛物线y=﹣x2+m﹣1x+m与y轴交点坐标是03.1求出m的值并画出这条抛物线2求抛物线与x轴的交
已知抛物线y=x+12+2则该抛物线与y轴的交点坐标是
已知函数y1=ax2+bx+c其中a<0b>0c>0问1抛物线的开口方向?2抛物线与y轴的交点在x轴
抛物线y=x2-4x-5与x轴的正半轴的交点坐标为_________与y轴的交点坐标为_______
抛物线y=x2﹣4x+m与x轴的一个交点的坐标为10则此抛物线与x轴的另一个交点的坐标是.
抛物线y=4x2-1与y轴的交点坐标是_________与x轴的交点坐标是_____.
若抛物线y=x2﹣2x+c与y轴的交点为0﹣3则下列说法不正确的是
抛物线开口向上
抛物线的对称轴是x=1
当x=1时,y的最大值为4
抛物线与x轴的交点为(﹣1,0),(3,0)
抛物线y=﹣x2+m﹣1x+m与y轴交于03点1求抛物线的解析式2求抛物线与x轴的交点坐标与y轴交点
若抛物线y=x2-2x+c与y轴的交点为0-3则下列说法不正确的是
抛物线开口向上
抛物线的对称轴是直线x=1
当x=1时,y的最大值为-4
抛物线与x轴的交点为(-1,0),(3,0)
下列关于抛物线y=﹣x2+2的说法正确的是
抛物线开口向上
顶点坐标为(﹣1,2)
在对称轴的右侧,y随x的增大而增大
抛物线与x轴有两个交点
若抛物线y=x2﹣2x+c与y轴的交点为0﹣3则下列说法不正确的是
抛物线开口向上
当x=1时,y的最大值为4
对称轴直线是x=1
抛物线与x轴的交点为(﹣1,0),(3,0)
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折线统计图不能反映各种数量的多少.判断题
一种小汽车原价12万元现价9万元降低了%
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.错误仅涉及一个单词的增加删除或修改. 增加:在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除:把多余的词用﹨划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. TwomonthsagomymotherandIwerewalkinghomefromshoppingwhilewenoticedasmalldoglyingsillonthemiddleoftheroad.Howdangeritwas!Wegotcloselytohimandfoundthathewasbadlyinjured.Sawthepoordogwedecidedtohelphim.Immediatelywecalledataxiandsendhimtoananimalhospitalwherehewasexaminedandreceivedtreatment.Afterstayinginhospitalforfewdayshebecamegoodenoughtowalk.Thenwetookhimhomeandlookedafterhimcarefullyuntilhewasfullyrecovered.Nowheisalreadyanimportantmemberofourfamilyandbringsourselvesalotofhappiness.
25%==20=填小数
假如你是李华你的笔友Tom正在学汉语发来邮件询问如何提高汉语水平请你根据提示用英语给Tom回复. 提示:1.关注语音语调四个声调; 2.背诵经典; 3.写日记; 4.其他. 注意:1.词数100左右; 2.可以适当增加细节以使行文连贯. 提示词:语调intonation声调tone经典作品classics DearTom Sincerely LiHua
深圳市某风景点近几年来游客人数统计图.2000年的游客人数比1998年增长%2002年的游客人数比2000年增长%.
解方程
解方程
You'11finditamazingtosupportpeoplewhenyougoouttoeat!Justlookforrestaurantsthathirepeoplewithdisabilitieswhicharemakingtheworldamoreinclusiveplace.Eachbakerycaféandrestaurantbelowhasawonderfulandheartwarmingstory. HugsCare:McKinneyTexas RuthThompsononcehadavisiontocreateanonprofitcaféthatwouldberunandoperatedprimarilybyadultswithspecialneeds.WithhardworkastrongpassionandanamazingteamHugsCaféopeneditsdoorsin2015.HugsCaféisnowsomuchmorethanajobtoour23teammateswhichisenhancingthemeaningfullivesofadultswithspecialneedsthroughtrainingandemploymentatHugsCafé.Thompsonsays. Vinny&Bay'sCoffeeandEatery:PanamaCityFlorida AlotofpeopleplantheirvacationsaroundcomingtothiscoffeeshopsayscaféownerKaraRigby.Vinny&Bay'sCoffeeandEaterywasestablishedsothatBayleehadaplacetoworkRigbyadds.BayleeisRigby'sdaughter'sfriendwhohasadisability.Thecoffeeshop'sgoalbecometrainingforindividualslikeBaylee.SomeworkershaveevenstartedatVinny&Bay'sandwereabletoworkinaregularworkplace.Rigbysaysthatheremployeeshaveawholelotmoreabilitiesthandisabilities.Theyloveunconditionallyanditchangesthewholeenvironmentandbusiness.Rigbybelievesthatincorporatingevenjustoneortwodisabledindividualsintoabusinesscanchangethewholeatmosphere﹣forthebetter! SugarPlumBakery:VirginiaBeachVirginia HeadtoSugarPlumBakerytofindadeliciouscarrotcakeandseepeoplewithdisabilitiessuccessfullyworkingalongsidenon﹣disabledworkers.SugarPlumhasbeenpromotingtheintegrationofadultswithdevelopmentaldisabilitiesbyprovidingtrainingandemploymentopportunitiestomorethan1000peoplewithdisabilitiessince1987.Whetherthey'rescoopingcookiesormakingcupcakesSugarPlum'sdisabledemployeesarethebackboneofthebakery. 1Whatdothethreerestaurantshaveincommon? A.Theyareestablishedbyadultswithspecialneeds. B.Theyaresupportedbycharitiesorlocalgovernment. C.Theyprovidetrainingandemploymenttodisabledindividuals. D.Theemployersandemployeesthereareallindividualswithdisabilities. 2Itcanbeknownfromthepassagethat. A.HugsCafésetupin1987nowhas23teamates B.RigbyfoundedhercoffeeshoptohelpBayleeherdaughter C.Disabledindividualsarenotabletoworkinaregularworkplace D.SugarP1umBakeryhiresbothnormalpeopleandpeoplewithdisabilities 3Whatdoestheunderlinedsentenceinthelastparagraphsuggest? A.Disabledworkerstherearethemostimportantpart. B.Thebakerygetssupportandstrengthfrombackbone. C.Thecustomersarealwaysbackingthedisabledworkers. D.Theemployeeshaveawholelotmoreabilitiesthandisabilities.
在绘制一幅条形统计图时如果用2厘米长的直条表示80千克那么5厘米的直条就表示千克的重量.
最简单整数比就是比的前项和后项只有公约数1.判断题
解方程 2x+3-51-x=3x-1
TheThingsThatKeepUsFromSucceeding Wehavealwaysbeentoldnottofearfailurebecauseitisessentialtosuccess.Soweshouldembracefailureoratleastthepossibilityoffailure.1.Ifyou'renotreachingthekindofsuccessyouimagineoneormoreofthefollowingthingsmightwellbetrueofyoutoo. NO.1:Youdon'thaveagoal.Atotoftimewefindourselvesstrugglingthroughaday﹣to﹣dayroutinethatisn'tgettingusanywherebecausewedon'tknowwherewewanttogo.Sometimeswehadgoalswhenwesetourselvesonaparticularpathbutwe'vechangedalongthewayandthosegoalsarenolongerthatimportant.2figuringoutwhatyourgoalsareisimportant. NO.2:Youdon'thaveavision.Settinggoalsisimportantbutisn'tenoughtodriveyoutothefinishline;it'simportanttootobeabletoimagineyourselfastheachieverofyourgoals.Ifgoalsaretheendresultofajourneyyourvisionisthefueltogetyouthere. NO.3:Youdon'thaveaplan.Ifgoalsareyourdestinationandavisionisyourfuelyourplanisthemaptogetyouthere.3.Theworldisfullofpeoplewithgoalstheyhaveneveraccomplishedbecausetheydidn'thaveaplan﹣don'tbeoneofthem. NO.4:You'retoocertainornotcertainenough.Toomuchcertaintycreatesinflexibility.Ifyou'resurethatyourplaniscorrectandrefusetoacceptthepossibilityoferroryoumaywellfindyourselfstuckwhenanunexpectedchangecomesabout.Howeverstrongyourplanandhoweversureyouareofyourgoalsmakeroomforperiodicreassessment. 4.Ifyourefusetotakeastepbecauseyouaren'tpositivethatitwillmoveyoutowardssuccessyouwon'tmakeanybetterprogressthanifyouhadnogoalsatall.Keepyoureyesopenandbewillingtochangebuthavefaithinyourselftoo. NO.5:5.Oftenwecloseourselvesofffromotherpeoplenotbecausewe'reafraidthattheywillinfluenceusbutthatwewillinfluencethem.Weareafraidthatourbrilliantideaswillbetakenupbysomeoneelseandnolongerbesolelyours.Soweavoidsharingourpassionsandspendourenergyjealouslyguardingoursecretratherthansimplymovingforward.Intheendweturnourpassionsintoburdensthataredifficulttocarryinsteadofajoy. A.Whateverthecase B.Whateverthecause C.Youworryaboutbeingcopied D.Youdon'tlearnfromyourmistakes E.Atthesametimetoolittlecertaintywillfailyou F.Howeverfearisn'ttheonlythingthatkeepsusfromsucceeding G.Withoutityouhavenoideawhatimmediatestepstotaketoachieveyourgoals
Whataredreamsfor?Ahandfuloftheorieshavethemostinfluence.SigmundFreudfamouslyclaimedthattheyrevealhiddentruthsandwishes.DespitebeinglargelyunsupportedbyevidenceresearchersfoundthatstudentsintheU.S.SouthKoreaandIndiaweremuchmorelikelytoaccepttheview.Inthesamestudyrespondentssaidthatdreamingaboutaplanecrashwouldcausethemmoreanxietythananofficialwarningaboutaterroristattack.Morerecentresearchsuggeststhattheymayhelpusprocessintenseemotionsorperhapssortthroughandstrengthenmemoriesorrehearseresponsestothreateningsituations. Evenifdreamscan'tforetellthefuturetheyseemtoexposeoursharedfascinations.ThemajorityofdreamsoccurduringREMsleepcyclesofwhichtheaveragepersonhasfourorfiveanight.AstudyofCanadianuniversitystudentsfoundthemostcommondreamtopicstobeschoolfallingbeingchasedandarrivingtoolateforsomething. Forallthecommonalitiesdreamsexhibittheyvaryacrosstimepeoplewhogrewupwatchingblack﹣and﹣whiteTVaremorelikelytodreaminblackandwhite﹣andculture.A1958studydeterminedthatcomparedwithJapanesepeopleAmericansdreamedmoreaboutbeinglockeduplosingalovedonefindingmoney.Japanesepeopleweremorelikelytodreamaboutschooltryingrepeatedlytodosomethingbeingparalyzedwithfearorwildviolentbeasts. Ifhumandreamssoundboringbearinmindthatevennegativeonescanhavepositiveeffects.InastudyofstudentstakingaFrenchmedical﹣schoolentranceexam60percentofthedreamstheyhadbeforehandinvolvedaproblemwiththeexamsuchasbeinglateorleavingananswerblank.Butthosewhoreporteddreamsabouttheexamevenbadonesdidbetteronitthanthosewhodidn't. 1WhatdoyouknowaboutFreud'sviewondreaming? A.Itwillcausepeoplemoreanxiety. B.It'salreadybeenprovedbyevidence. C.It'spopularwithsomeAmericanandAsianstudents. D.Itcanrevealthehiddentruthandpredictthefuture. 2Accordingtorecentresearchdreamsmay. A.makeemotionsintense B.helpprepareforspecialsituations C.reduceourmemories D.helpustakenotes 3Accordingtoparagraphs2and3whichofthefollowingistrue? A.Theaveragepersonhasfourorfivesleepcyclesanight. B.Canadianstudentsaren'tworriedaboutbeinglateforschoo1. C.AmericansusuallysharethesamedreamtopicswithJapanese. D.FilmsaboutwildbeastsmaybewidelyshowninAmericain1958. 4Ifyoudreamthatyoufailedtheexam. A.yourdreamwillcometrue B.you'llbedepressedwithfear C.youaresupposedtotakeitseriously D.itshowsthatyoucarealotabouttheexam
化简比.1
解方程
一班和二班人数比54已知二班48人一班和二班一共有多少人
求比值.千米500米
解方程
ForKimDuffysendingawayherteenagedaughterwasthebesthopeforsavingthegirl'slife. Corinnethen17hadbeenstrugglingwithbulimia贪食症andanorexia厌食症formorethanfiveyears.DuffyandherhusbandTerryfoundaresidentialfacilityinVirginiaandCorinnesignedonforatwo﹣monthstayinthesummerof2009. TodayCorinne'shealthyandpursuingamaster'sdegreeinColorado.Sheandherparentsbelievetheholistic整体approachandindividualizedfocuswerekeytoherrecovery.Andtheyknowtheyhadaccesstouniqueresources.WewerefortunatesaysDuffy.Wecouldpayforeverything. Butmanycan't.AccordingtoareportreleasedinNovember2014bytheStandingCommitteeontheStatusofWomenbetween600000andonemillionCanadianssufferfromaneatingdisorder.Publicinpatientprogramsoftenwon'tadmitpatientsuntilthey'reinlife﹣threateningcondition.Privateclinicsoftenhavealongwaitlistsandhighcosts﹣atHomewoodinGuelphOnt.aroomis﹩305to﹩360perday. TheDuffs'struggleledthentoconnectotherfamilieswiththequalityofcaretheyreceivedintheUnitedSates.Inlate2013heyfoundedtheWaterStoneClinicaprivateeatingdisordercenterinToronto. Sincethefacilityopened170clientshavereceivedtreatment.Theytakeyogadoarttherapyandparticipateinmealpreparationbuildingreal﹣lifeskillswithasupportteam.Programsrunweekdaysfrom8a.m.to2p.m.andnotablysofarWaterStonehasnowaitinglist. Butthisapproachiscostly:approximatelyS650perday.RealizingthatthepricetagputsWaterStoneoutofreachformanytheDuffyscreatedtheWaterStoneFoundation﹣acharitythatprovidesaidtopatientswhocan'taffordtreatmentthefollowingyear.Candidatesareassessedbywocommitteesthatmakeadecisionbasedonclinicalandfinancialneed.Since2014thefoundationhashelped100people. Duffyalsowantstochangethepublicsystem.InJuneofthisyearthefoundationawarded$170000tofourOntariohopitalsofferingcreativetreatmenttoeatingdisorderpatients.Yespeopleneedprivatetreatmentshesaysbutit'simportanttohelpoutonabroaderscaletoo. 1WhydidDuffythinktheywerefortunate? A.Theyhadenoughmoneytoravelabroad. B.Theycouldaffordthemedicalresources. C.Theyhappenedtofindarighthospital. D.Theymetveryexperienceddoctors. 2WhatcanweinferfromParagraph3? A.Publichospitalscannottreatpatientswitheatingdisorder. B.ManypeoplediefromeatingdisorderinCanadianpublichospitals. C.Alotofeatingdisorderpatientshavenoaccesstopropertreatment. D.Inprivateclinicseatingdisorderpatientswillreceivetimelytreatment. 3WhichofthefollowingpatientswillreceivehelpfromWaterStoneFoundation? A.Pooroneswhosufferfromthedisease. B.Oneswhoarerejectedbypublichospitals. C.Oneswhoarefacingdeath. D.oldoneswhoarepoor. 4WhatdoweknowfromDuffy'swordsinthelastparagraph? A.Onlyprivateclinicscangivepropertreatmenttothepatients. B.Treatmentofthediseaseinpublichospitalsshouldbeimproved. C.Shewantstocooperatewithpublichospitalstohelpthepatients. D.Publichospitalsshoulddomoretohelppeoplewitheatingdisorder.
Anewstudyfrombrainresearchershelpsexplainhowthehumanbrainevolvedorchangedovertimetopermitpeopletospeakandwrite. MichaelUllmantheleadresearcheraprofessoratGeorgetownUniversityMedicalSchoolinWashingtonD.Chasbeenstudyinglanguagelearningformorethan20years. Ullmansayshisresearchshowsthatthehumanbraindoesnothaveaspecialareaorsystemformakinglanguage.Overtimewehavesimplyreusedorco﹣opted指派partsofourbrainforlanguage.Andthosepartshesaysareancient﹣oldereventhanhumansthemselves. Thisstudyexaminesthetheoreticalframework准则thatlanguageislearnedstoredand'processedintwoancientlearningandmemorysystemsinthebrain. UllmanHamrickandtherestoftheteamlookedatdatafrom16otherstudiesonlanguage.Theyfoundthatpeoplelearnlanguageusingtwomemorysystems:declarativeandprocedural.Memorizingvocabularyforexampleisadeclarativememoryprocess.Butlearninggrammarismostlyaproceduralmemoryprocess. Declarativememoryinhumansatleastiswhatwethinkofaslearningmemory'suchas'Ohrememberwhatyousaidlastnight'orthingslikethat.Andproceduralmotormemoryiswhatweoftencallmotormemory'suchashowyoulearntorideabicycle.OrUllmanaddsTheseproceduralmemoryskillsbecomesodeeplyleanedthatwearenolongerawarethatwearedoingthem. HoweverUllmanexplainsthatthetwolong﹣termmemorysystemscansharetasks.Andheadstheadultbrainusesthesystemstolearnlanguageabitdifferentlythanachild'sbrain. Adultlanguagelearnersofasecondlanguagemayusetheirdeclarativememoryforusinggrammarpatterns.Theythinkaboutitpurposefully.Forachildthegrammarmaycomemorenaturally.Theydon'thavetothinkaboutthegrammarrulesbeforespeaking. InadditiontolanguagelearnersUllman'sstudycouldhelppeoplewhohaveabraininjurythataffectsspeakingandwriting.Thisknowledgecanalsohelpthosewhohavelearningdisabilitiessuchasdyslexia阅读障碍.Peoplewithdyslexiahavedifficultyrecognizingwordsandsymbolsaccurately. 1HowdidUllmanstudyhuman'smemorysystems? A.Byexaminingthebrainwithhisteam. B.Bystudyinglanguagelearningoveryears. C.Bycomparingdifferentlanguagesyearafteryear. D.Byreferringtodatafromotherstudiesonlanguage. 2Whichofthefollowingisanexampleofmotormemory? A.Learningtomakeamodelplane. B.Rememberingthegrammarpatterns C.Repeatingwhatyouheard. D.Memorizingwhatyouread. 3Whatdoestheunderlinedworditreferto? A.Declarativememory. B.Anadultlanguagelearner. C.Usinggrammarpatterns. D.Asecondlanguage. 4What'sthemainideaofthetext? A.Humanhasadvancedourlanguageunderstanding. B.Anewresearchhelpspeoplelearnanewlanguage. C.Learningmemoryismoreactivethanmotormemory. D.Humanbeingslearnlanguageinprehumanareaofbrain.
解方程x-0.4=x+0.3
IhadstoppedtogetgasataplacewhereIalmostnevergo.Ihad1aboutcleaningmywindshield挡风玻璃.Butthenwhenthegas2wasalmostfinishedIdecidedforsomereasonto3andcleanit.That'swhatIwasdoingwhenawomanapproachedmeandaskedfor4. Thereweretwowomenonemiddleagedtheothertwenty﹣something5ayoungchildinthebackseat.Onadaywhenthetemperaturewaswellpast100theywere6inanoldcarwithnoairconditioningdrivingfromatownaboutanhouraway. CanyoutellushowtogettoMopacsir?Shehadafolded﹣upprintoutofdirectionsfromGooglemaps.Sure.WhereonMopacareyou7?Iasked.Sheunfoldedtheprintoutandshowedmethe8.Iknewitwellandstartedtogetthe9thatthismomentwasmeanttohappen.Iknow10wherethatis.Itoldher.Iusedtohavean11inthatbuildingtoworkin. I12givingdirectionstotheolderladyandthenagaintoher13whowasthedriver.IttookawhilebecauseI14eachinstructiontomakesuretheyunderstood.Inasinceremomentof15theolderladythankedme. Thewhole16helpedmemuchmorethanithelpedher.Ihadbeenhavingavery17day.InfacttheonlyreasonIhadgonetothatparticulargasstationwasthatIwantedtotakealittledriveand18myhead. AsIreplacedthegascaphavingsentthemontheirwayIsuddenly19thatIfeltbetter.Myheadwasclear.AndIam20fortherealgoodnessitbroughtintomylife. 1A.cared B.hesitated C.worried D.complained 2A.making B.leaking C.burning D.pumping 3A.goahead B.giveup C.setoff D.hurryup 4A.gas B.coins C.directions D.food 5A.upon B.with C.except D.beyond 6A.starving B.sheltering C.traveling D.hiding 7A.lost B.arranged C.located D.headed 8A.distance B.line C.sign D.address 9A.feeling B.evidence C.reward D.pleasure 10A.generally B.exactly C.wholly D.personally 11A.destination B.field C.office D.apartment 12A.thoughtof B.putoff C.turnedto D.endedup 13A.companion B.passenger C.helper D.colleague 14A.explained B.repeated C.demonstrated D.recalled 15A.silence B.coldness C.appreciation D.embarrassment 16A.situation B.accident C.conversation D.incident 17A.meaningful B.fortunate C.important D.difficult 18A.clear B.empty C.cover D.turn 19A.understood B.realized C.acknowledged D.assume 20A.anxious B.fit C.ready D.grateful
化简比.8.5米25分米
育人书店上周图书销售情况统计图.根据统计图填空1售出图书最多的一天比最少的一天多册.2本周一共售出图书册.3平均每天售出图书册.4星期五售出的图书册数是星期四售出册数的%.
Nowadays5GisverypopularamongcustomersbutChinaislookingpast5Gandintending.1builda6Gnetwork.Chinaisstartingresearchinto6G2makeitoneofthefirstcountriestodoso.Theactualdevelopmentof6Gwilt3officialbeginin2020butthecommercialusewillhavetowait. The4arriveof5Ghasattractedalotofpeople.ItnotonlybringsfastmobileInternetbutalso5enableustoconnectwithmachines.So6is6Gsupposedtobringespeciallyforordinarypeople?Foronething7willmakemobileInternetworkataspeedof1TBpersecondwhichmeansyoucandownloadaround100films8lessthanonesecond.Foranother6Gwillconnectourdevices9efficientlythan5GwhichmakesInternetcoveragemuchwider. Ofcoursethereisalongwaytogoyet10Ibelievetomorrow'sInternetisinourhands.Ourlifeinthefuturewillbewonderfulandfantastic.
求比值.
解方程-6x=-x+1
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