SAT备考SAT全真模拟试题Section 3附答案.docx
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SAT备考SAT全真模拟试题Section 3附答案.docx
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SAT备考SAT全真模拟试题Section3附答案
SAT全真模拟试题
Section3
TurntoSection3ofyouranswersheettoanswerthequestionsinthissection.
Time—25Minutes20Questions
Directions:
Forthissection,solveeachproblemanddecidewhichisthebestofthechoicesgiven.Fillinthecorrespondingovalontheanswersheet.Youmayuseanyavailablespaceforscratchwork.
Notes:
1.Theuseofacalculatorispermitted.Allnumbersusedarerealnumbers.
2.Figuresthataccompanyproblemsinthistestareintendedtoprovideinformationusefulinsolving
theproblems.TheyaredrawnasaccuratelyaspossibleEXCEPTwhenitisstatedinaspecific
problemthatthefigureisnotdrawntoscale.Allfigureslieinaplaneunlessotherwiseindicated.
3.Unlessotherwisespecified,thedomainofanyfunctionfisassumedtobethesetofallrealnumbersxforwhichf(x)isarealnumber.
1.Ifa+4a=2925,thena=
(A)21
(B)25
(C)27
(D)29
(E)33
PETSATANANIMALSHELTER
Male
Female
Total
Cats
a
b
m
Dogs
c
d
n
Total
j
k
P
(C)c+d
(D)c+d+n
(E)a+b+c+d
3.In△RSTabove,whatisthevalueofz?
(A)27
(B)35
(C)47
(D)60
(E)120
4.Scott'scarbrokedownanditwillcost$1,500tofixit.Anewercarwithbettergasmileage,costing$4,000,willsaveScott$50permonthingascosts.IfScottbuysthenewcar,inmmonthshewillhavesavedanamountequaltothedifferencebetweenthecostofthenewcarandthecostoffixingtheoldone.Whatisthevalueofm?
(A)15
(B)30
(C)45
(D)50
(E)80
5.TheareaofsquareWXYZis4timestheareaofsquareQRST.IftheareaofsquareQRSTis16squarecentimeters(cm),whatisthelengthofonesideofsquareWXYZ?
(A)4cm
(B)8cm
(C)16cm
(D)32cm
(E)64cm
6.Awindturbinecompletes50revolutionsperminuteataconstantspeed.Iftheturbinerunscontinuouslyfor24hourseachday,approximatelyhowmanydayswillittaketheturbinetocomplete864,000revolutions?
(A)12
(B)120
(C)1,200
(D)12,000
(E)120,000
7.Iftheaverage(arithmeticmean)ofsand2sis15,whatisthevalueofs?
(A)5
(B)7.5
(C)10
(D)12.5
(E)15
8.Inageometricsequenceofterms,thereisaconstantratiobetweenconsecutiveterms.Ifthesixthtermofacertaingeometricsequencewithaconstantratioof2is288,whatisthefirsttermofthesequence?
(A)4
(B)6
(C)9
(D)12
(E)14
9.If2g+4h=g+3,whatishintermsofg?
(A)3-g
(B)3-4g
(C)4(g+3)
(D)3-g4
(E)34(g+1)
10.Ifqisapositiveinteger,let→qbedefinedasthesetofallpositivefactorsofq.Whichofthefollowingsetscontainsallofthenumbersfoundinallthreeofthesets→3,→5,and→10?
(A)→320
(B)→627
(C)→925
(D)→1,250
(E)→1,500
11.Inthefigureabove,linelisparalleltolinem.Lineslandmarecrossedbytransversalp.IfACbisects∠DAB,whatisthevalueofX?
(A)35°
(B)70°
(C)90°
(D)105°
(E)145°
12.Ifzisapositiveinteger,whatistheleastvalueofzforwhich7zisaninteger?
(A)7
(B)10
(C)28
(D)96
(E)112
13.Thefiguresaboverepresentthreepiecesoffabric.Alloftheanglesofthefabricpiecesarerightangles,allshortsideshavelength2,andalllongsideshavelength4.Whichofthefollowingpatternscouldbemadefromonlythethreepiecesoffabricwithoutoverlappingorcuttingthem?
(A)None
(B)Ionly
(C)IIonly
(D)IIIonly
(E)IandII
14.Howmanyintegersgreaterthan25andlessthan35areeachtheproductofatleasttwoidenticalprimenumbers?
(A)Zero
(B)One
(C)Two
(D)Three
(E)Four
15.Thefigureaboveisarighttriangle.Whatisthevalueof72.25-x²?
(A)60
(B)85
(C)96.75
(D)122.50
(E)169
16.Thefigureaboveshowsthegraphofaquadraticfunctiongwhoseminimumvalueisg(-2).Ifg(b)=2,whichofthefollowingcouldbethevalueofb?
(A)1
(B)0
(C)-2
(D)-3
(E)-4
17.Ifbanddareconstantsandx²+bx+6isequivalentto(x+2)(x+d),whatisthevalueofb?
(A)2
(B)3
(C)5
(D)6
(E)Itcannotbedeterminedfromtheinformationgiven.
18.Inthefigureabove,ifthelegsoftriangleXYZareparalleltothexy-plane’saxes,whichofthefollowingcouldbethelengthsofthesidesoftriangleXYZ?
(A)2,4,and20
(B)2,4,and10
(C)3,33,and6
(D)5,12,and13
(E)5,10,and65
19.Letthefunctionjbedefinedbyj(x)=4x+3.If13j(r)=3,whatisthevalueofr?
(A)43
(B)343
(C)64
(D)94
(E)3
20.Ifxisanegativefractionwithanumeratorof1,whichofthefollowingmustrepresentapositivewholenumber?
(A)3x
(B)x²
(C)12(-x²)
(D)4x3
(E)x-2
STOP
IFYOUFINISHBEFORETIMEISCALLED,YOUMAYCHECKYOURWORKONTHISTESTONLY.DONOTTURNTOANYOTHERSECTIONINTHISTEST.
答案:
SECTION3
1.B
2.E
3.C
4.D
5.B
6.A
7.C
8.C
9.D
10.E
11.B
12.C
13.B
14.D
15.A
16.A
17.C
18.A
19.D
20.E
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