sat数学考试试题精品文档Word文件下载.docx

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sat数学考试试题精品文档Word文件下载.docx

(B)4 

(C)5 

(D)6 

(E)7

3. 

Inthexy-coordinate(坐标)planeabove,thelinecontainsthepoints(0,0)and(1,2).IflineM(notshown)containsthepoint(0,0)andisperpendicular(垂直)toL,whatisanequationofM?

(A)y=-1/2x 

(B)y=-1/2x+1 

(C)y=-x 

 

(D)y=-x+2 

(E)y=-2x

4. 

IfKisdivisibleby2,3,and15,whichofthefollowingisalsodivisiblebythesenumbers?

(A)K+5 

(B)K+15 

(C)K+20 

(D)K+30 

(E)K+45

5. 

Thereare8sectionsofseatsinanauditorium.Eachsectioncontainsatleast150seatsbutnotmorethan200seats.Whichofthefollowingcouldbethenumberofseatsinthisauditorium?

(A)800 

(B)1,000 

(C)1,100 

(D)1,300 

(E)1,700

6. 

Ifrsuv=1andrsum=0,whichofthefollowingmustbetrue?

(A)r<

(B)s<

(C)u=2 

(D)r=0 

(E)m=0

7. 

Theleastintegerofasetofconsecutiveintegers(连续整数)is–126.ifthesumoftheseintegersis127,howmanyintegersareinthisset?

(A)126 

(B)127 

(C)252 

(D)253 

(E)254

8. 

Aspeciallotteryistobeheldtoselectthestudentwhowillliveintheonlydeluxeroominadormitory.Thereare200seniors,300juniors,and400sophomoreswhoapplied.Eachsenior’snameisplacedinthelottery3times;

eachjunior’sname,2time;

andeachsophomore’sname,1times.Ifastudent’snameischosenatrandomfromthenamesinthelottery,whatistheprobabilitythatasenior’snamewillbechosen?

(A)1/8 

(B)2/9 

(C)2/7 

(D)3/8 

(E)1/2

Question#1:

50%ofUScollegestudentsliveoncampus.Outofallstudentslivingoncampus,40%aregraduatestudents.WhatpercentageofUSstudentsaregraduatestudentslivingoncampus?

(A)90%(B)5%(C)40%(D)20%(E)25%

Question#2:

Inthefigurebelow,MNisparallelwithBCandAM/AB=2/3.WhatistheratiobetweentheareaoftriangleAMNandtheareaoftriangleABC?

(A)5/9(B)2/3(C)4/9(D)1/2(E)2/9

Question#3:

Ifa2+3isdivisibleby7,whichofthefollowingvaluescanbea?

(A)7(B)8(C)9(D)11(E)4

Question#4:

Whatisthevalueofb,ifx=2isasolutionofequationx2-b·

x+1=0?

(A)1/2(B)-1/2(C)5/2(D)-5/2(E)2

Question#5:

Whichvalueofxsatisfiestheinequality|2x|<

x+1?

(A)-1/2(B)1/2(C)1(D)-1(E)2

Question#6:

Ifintegersm>

2andn>

2,howmany(m,n)pairssatisfytheinequalitymn<

100?

(A)2(B)3(C)4(D)5(E)7

Question#7:

TheUSdeerpopulationincreaseis50%every20years.Howmaytimeslargerwillthedeerpopulationbein60years?

(A)2.275(B)3.250(C)2.250(D)3.375(E)2.500

Question#8:

Findthevalueofxifx+y=13andx-y=5.

(A)2(B)3(C)6(D)9(E)4

Question#9:

US

UK

Medals

3

2

gold

1

4

silver

bronze

Thenumberofmedalswonatatrackandfieldchampionshipisshowninthetableabove.WhatisthepercentageofbronzemedalswonbyUKoutofallmedalswonbythe2teams?

(A)20%(B)6.66%(C)26.6%(D)33.3%(E)10%

Question#10:

Theedgesofacubeareeach4incheslong.Whatisthesurfacearea,insquareinches,ofthiscube?

(A)66(B)60(C)76(D)96(E)65

Thesumofthetwosolutionsofthequadraticequationf(x)=0isequalto1andtheproductofthesolutionsisequalto-20.Whatarethesolutionsoftheequationf(x)=16-x?

(a)x1=3andx2=-3(b)x1=6andx2=-6

(c)x1=5andx2=-4(d)x1=-5andx2=4

(e)x1=6andx2=0

Inthe(x,y)coordinateplane,threelineshavetheequations:

l1:

y=ax+1

l2:

y=bx+2

l3:

y=cx+3

Whichofthefollowingmaybevaluesofa,bandc,iflinel3isperpendiculartobothlinesl1andl2?

(a)a=-2,b=-2,c=.5(b)a=-2,b=-2,c=2

(c)a=-2,b=-2,c=-2(d)a=-2,b=2,c=.5

(e)a=2,b=-2,c=2

Themanagementteamofacompanyhas250menand125women.If200ofthemanagershaveamasterdegree,and100ofthemanagerswiththemasterdegreearewomen,howmanyofthemanagersaremenwithoutamasterdegree?

(a)125(b)150(c)175(d)200(e)225

Inthefigurebelow,theareaofsquareABCDisequaltothesumoftheareasoftrianglesABEandDCE.IfAB=6,thenCE=

(a)5(b)6(c)2(d)3(e)4

Ifαandβaretheanglesoftherighttriangleshowninthefigureabove,thensin2α+sin2βisequalto:

(a)cos(β)(b)sin(β)(c)1(d)cos2(β)(e)-1

Theaverageofnumbers(a+9)and(a-1)isequaltob,whereaandbareintegers.Theproductofthesametwointegersisequalto(b-1)2.Whatisthevalueofa?

(a)a=9(b)a=1(c)a=0(d)a=5(e)a=11

Iff(x)=xandg(x)=√x,x≥0,whataretheso

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