SAT数学练习题第9套 含答案

　　SAT考试数学练习题第九套 SAT problem solving practice test 9

　　1. (3 x 104) + (2 x 102) + (4 x 10) =

　　A. 302400
B. 32400
C. 30240
D. 3240
E. 324

　　2. Andy solves problems 74 to 125 inclusive in a Math exercise. How many problems does he solve?

　　A. 53
B. 52
C. 51
D. 50
E. 49

　　3. If x and y are integers, and 3x + 2y = 13, which of the following could be the value of y ?

　　A. 0
B. 1
C. 2
D. 3
E. 4

　　4. In triangle ABC, AD = DB , DE is parallel to BC, and the area of triangle ABC is 40. What is the area of triangle ADE ?

　　A. 10
B. 15
C. 20
D. 30
E. it cannot be determined from the information given

　　5. If n > 0 , which of the following must be true?

I n2 > 1
II n - n2 < 0
III 2n - 1 > 0

　　A. I only
B. II only
C. III only
D. I and II only
E. none

　　6. If the slope of a line is and the y-intercept is 3, what is the x-intercept of the same line?

　　A. 6
B. 3/2
C. 0
D. -2/3
E. -6

　　7. 6 people meet for a business lunch. Each person shakes hands once with each other person present. How many handshakes take place?

　　A. 30
B. 21
C. 18
D. 15
E. 10

　　8. If x2 - y2 = 55, and x - y = 11, then y =

　　A. 8
B. 5
C. 3
D. -8
E. -3

　　9. In a sports club with 30 members, 17 play badminton and 19 play tennis and 2 do not play either. How many members play both badminton and tennis?

　　A. 7
B. 8
C. 9
D. 10
E. 11

　　10. Rectangle ABCD has a perimeter of 26. The half circle with diameter AD has an area of 8π. What is the perimeter of the part of the figure that is not shaded?

　　A. 26 + 4π
B. 18 + 8π
C. 18 + 4π
D. 14 + 4π
E. 14 + 2π