2015年SAT考试数学真题分享
绵薄流光年
真题对于SAT考生来说是相当好的备考练习,今天就分享一些2015年SAT考试数学真题,如果大家想要更多的SAT真题,可以去下载全新上线的SATonline 5.0.在这款SAT真题APP里大家不仅可以有22套真题练习,还可以去社区答疑解惑,结交SAT战友。更多精彩尽在SATonline 5.0…… 2015年1月24日SAT2数学考试回忆 1.ifthere four numbers 1,2,3 and 4, arrange them to a four-digit number, if it mustbe an odd number, how many arrangements there are? (A)6 (B)8 (C)12 (D)24 (E)36 答案:C 2.ifx is multiple of 4,then which of the following must be multiple of 8 (A)x+4 (B)x+8 (C)2x+4 (D)2x+8 (E)3x 答案:D 3.if5xy<1,which of the following must be true? (A)xy>0 (B)xy>1 (C)xy<0 (D)0 (E)xy>-1 答案:C 4.if0 (A)(x-y)2 (B)(y-x)3 (C)x2-1 (D)x3-y3 (E)y2-1 答案:D 5.in figure above, Rt?ABC issimilar to Rt?DEF, then cosA=? (A)2/3 (B)2/5 (C)3/4 (D)3/5 (E)4/5 答案:D 6.ifcos(a-b)=cos a cos b-sin a sin b ,thecos2x= (A)cos2x-sin2x (B)cos2x+sin2x (C)2cosx (D)sin2x (E)2sinxcosx 答案:A 7.thearea enclosed by x+y=5,y=2x-4 and y axis is ? (A)20 (B)15 (C)14.5 (D)12.5 (E)13.5 答案:E 8.iff(x+1)=xf(x), and f(1)=1,thenf(5)=? (A)5 (B)10 (C)15 (D)24 (E)28 答案:D 9.if x=1/(3- √(5)),then (3-1/x)2= (A)3 (B)4 (C)5 (D)6 (E)7 答案:C 10.ifgraph of f(x) and f-1(x) are identical ,then f(x) and f(x)-1 symmetryabout which ? (A)origin (B)y=x (C)y=-x (D)y=x+1 (E)y-x+1 答案:B 11.f(x)=[x],representthe largest integer less than or equal to x, g(x)=-1/x,then f(g(3))= (A)1 (B)-1 (C)0 (D)1/3 (E)-1/3 答案:B A list 0,2,4,6,8 B list: 3,5,7,9,11 12.whichof the following statements about A list and B list are true? I.theyhave same mean II.they have samestandard deviation III. They have samerange (A)I (B)I,II (C)I,III (D)II,III (E)I,IIand III 答案:D 13.there are two fair dice, one dice have number 1,1,2,2,2,2 and another dice have1,2,2,2,2,2, they are thrown, which probability that one is 1 and another is 2,ineither order? (A)6/36 (B)8/36 (C)10/36 (D)14/36 (E)18/36 答案:D 14.if7/8≤x≤4/3,a number x is random chosen from this interval,whatis the probability that x≥1 (A)3/11 (B)5/11 (C)7/11 (D)8/11 (E)10/11 答案:D
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