SAT数学试题及答案sat数学.docx
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SAT数学试题及答案sat数学.docx
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SAT数学试题及答案sat数学
thatsatisfythesecondequationare
thatsatisfiesbothequations.Thatvalueis
Theformulaforacone‘ssurfaceareaisπr2+πrl.Acone‘svolumeis1/3πr2h.Soif
一道SAT数学题(抛物线)
ThecorrectanswerisC
Explanation
mustbethevertexoftheparabola.The
parabolaintersectsthe
somustbehalfway
.Ofthechoices,theonlyonewith
couldbethecoordinatesof
Verticalheightoftriangle=5;horizontalside=4;hypotenuse=
2.nisanintegerchosenatrandomfromtheset{5,7,9,11}
pischosenatrandomfromtheset{2,6,10,14,18}
A.0.75D
B.0.76D
C.0.765D
D.0.775D
whatisthebestapproximationtothelengthofarcAB?
A.9
π.Thelengthofthearcis100/360ofthe
membersandthechessclubhas
studentsbelongtoonlyoneofthetwoclubs,howmany
studentsbelongtobothclubs?
AnswerChoices
ThecorrectanswerisC
Explanation
standforthenumberofstudentswhobelongtobothclubs.The
studentswhoareinthechessclubonly.
that
belongtobothclubs。
.Solvingthisequationgives
ThecorrectanswerisD
Explanation
leastcommonmultipleof
thesumwillalsobeamultipleof
toanumberthatisnotamultipleof
beamultipleof
3、Inan
gramswaterforeachgramof
alcoholisaddedtothe
ThecorrectanswerisB
Explanation
alcoholbymass,soitcontains
gramsofalcohol,so
E.18000
190inclusive?
Notenrolledstudents=24
1.Whatisthesumofallthepositiveintegerfactorsof12?
willbesoldat
ThecorrectanswerisC
Explanation
Solvingthisequationfor
percartridge,youneedto
times;eachjunior'sname,
eachsophomore'sname,
ThecorrectanswerisD
Explanation
seniors'names.Likewise,there
lottery.Theprobabilitythatasenior'snamewillbechosen
Whichofthefollowinginequalitiesisgraphedbelow?
alityiseither
cent‘.So(√5/100)x5√5=5x5/100=0.25
5.-20,-16,-12,-8....
respectively,thanthelengthandwidthofrectangle
ThecorrectanswerisA
Explanation
representthelengthandwidth,respectively,of
.Theareaofrectangle
.Therefore,theareaof
lineM(notshown)containsthepoint(0,0)andisperpendicular
(垂直)toL,whatisan
答案:
(E)
1.If10+xis5morethan10,whatisthevalueof2x?
(A)-5(B)5(C)10(D)25(E)50
2.If(x-2)2=49,thenxcouldbe
(A)-9(B)-7(C)2(D)5(E)9
(A)A(B)I(C)O(D)U(E)E
(A)10(B)8(C)6(D)4(E)2
7.Ifx=20andy=30inthefigureabove,whatisthevalueofz?
(A)60(B)70(C)80(D)90(E)100
withanadditionaldiscountof10percentoffthesaleprice?
(E)-6 9.If6<|x-3|<7andx<0,whatisonepossiblevalueof|x|? thenhowmanydollarswould3Velcrotabscost? ‖很容易得出答案是 averagerefertothearithmeticmean. Theaverageoftheintegers24, x+y=55-24-6-12=13 (c)median=2,average=-4/9
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