Whatvalueofsatisfiesbothoftheequationsabove?Thecorrectansweris1/2or.5ExplanationDifficulty:MediumSince,thevalueofiseitheror.ORThetwovaluesofthatsatisfythefirstequationareand.Since,thevalueofiseitheror.ORThetwovaluesofthatsatisfythesecondequationareand.Youareaskedtofindthevalueofthatsatisfiesbothequations.Thatvalueis.Theanswercanbeenteredinthegridasor.下面是两道SAT数学练习题，都是选择题，后面附有答案及其解析。SAT数学练习题可以让大家更快更好的了解SAT数学考试的出题方式以及应对方式。下面是详细内容，我们一起来看一下这些SAT数学练习题的吧。1、ConeAhasvolume24.Whenitsradiusandheightaremultipliedbythesamefactor,thecone’ssurfaceareadoubles.WhatisConeA’snewvolume?(A)(B)48(C)(D)96(E)Notenoughinformationtotell2、Arectanglestandssothatits6inchsideliesflatagainsttheground.Iftherectangleisrotatedaroundtheaxisofoneofitstwo4inchsides,whatisthevolumeoftheresultingcylinder?(A)24Ï€(B)36Ï€(C)64Ï€(D)96Ï€(D)144Ï€Answers1、CTheformulaforacone’ssurfaceareaisπr2+πrl.Acone’svolumeis1/3πr2h.Soifthedimensionsofaconearemultipliedbythesamefactor,a,thenitssurfaceareamultipliesbythesquareofthatfactor.Ifthedimensionsofaconearemultipliedbythesamefactor,thevolumebecomesmultipliedbythecubeofthatfactor:Ingeneral,forsolids,ifeachdimensionofaconeismultipliedbythesamefactor,thesolid’ssurfaceareaismultipliedbythesquareofthatfactor,anditsvolumeincreasesbythecubeofthatfactor.IfthesurfaceareaofConeAdoubles,itsdimensionsaremultipliedbyafactorofThus,thecone’svolumeismultipliedbyafactorofConeA’snewvolumeis2、EIftherectangleisrotatedaboutasideoflength4,thentheheightofthecylinderwillbe4andtheradiuswillbe6.Onceyouvisualizethecylinder,youcanpluginthevaluesforthevolumeofacylinder:一道SAT数学题(抛物线)天道留学tiandaoedu.com时间：2011-08-26HYPERLINK"http://sat.tiandaoedu.com/math/44395.html"\t"_blank"点击：26次下面是一道关于抛物线的SAT数学题及其解法的内容，非常详细。SAT题中，抛物线是必考的一类，虽然中学课程都有所涉及，还是相对比较抽象，尤其是在理解SAT数学题的表达方式上。下面我们来看看这道关于抛物线的SAT数学题吧。ReadthefollowingSATtestquestionandthenclickonabuttontoselectyouranswer.Thequadraticfunctionisgraphedinthe-planeabove.Ifforallvaluesof,whichofthefollowing