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1、1. If 3x 5 = 16, then x =A.7B.311C.4 D.7 E.182. If xx4 79+=, what is the value of x?A.321B.7 C.14 D.21 E.35Note: Figure not drawn to scale.3. In the figure above, what is the value of x?A.20 B.50 C.60 D.80 E.1404. At a flooring center, you can purchase carpet in one of five styles and in one of 10 c
2、olors. How many different style-color combinations are possible at this flooring center?A.15 B.36 C.40 D.45 E.505. In the xy-plane, a circle has its center at point C (0, 0) and contains the point P (3, 4). Under the translation that moves point C to (2, 3), where will point P be located after this
3、translation?A.(1, 1) B.(1, 1) C.(3, 2) D.(4, 5) E.(5, 7)6. If f xxx2 532 =-+hh, what is the value of f(5)? A.0B.151C.252D.353E.47. According to the data in the graph above, between which two consecutive days of the week was the percent increase in temperature the greatest?A.Sunday to Monday B.Monday
4、 to Tuesday C.Wednesday to Thursday D.Thursday to Friday E.Friday to Saturday30201060705040Temperature (F)MONTUESWEDTHURFRISATSUN100x20BCA8. An employee had to take a pay cut of 20%. A while later, she received a pay raise of 25%. Her new salary after the pay raise was what percent of her salary bef
5、ore the pay cut?A.45% B.55% C.80% D.95% E.100%9. If the average (arithmetic mean) of x, 6, 10, 12, 5x, and 10 is equal to 3x, what is the value of x?A.2 B.3 C.4 D.5 E.610. 3x 2y = 12 and x + 3y = 7For what values of x and y are the equations above both true?A.x = 6, y = 3 B.x = 4, y = 1C.x = 1, y29=
6、D.x = 2, y = 3 E.x = 10, y = 111. It takes Lisa h hours to walk a distance of m miles. At this same rate, how many hours will it take her to walk a distance of d miles?A.hdmB.mdhC.dmhD.mhdE.hdm12. If the ratio of the number of boys to the number ofgirls in a class is 43, which of the following could
7、NOT be the number of students in this class?A.21 B.28 C.33 D.42 E.4913. The ratio of the length of a rectangle to its width is 5:3. If the length is 10, what is the area of the rectangle?A.6 B.15 C.16 D.32 E.6014. If xmbc=-+, what is c in terms of x, b, and m?A.m2x2 b2 B.(x m + b)2C.xmb+ D.(mx + b)2
8、E.bxm22-h15. The minimum speed on a given stretch of freeway is 45 mph, and the maximum speed is 65 mph. Which of the following inequalities could be used to decided if a motorist driving at a rate of r mph is within legal limits?A.r4510#- B.r5510#- C.r6510#- D.r5510- E.r1055#-16. Above is the graph
9、 of y = f(x). Which of the graphs below is that of y = f(x + 1) + 3?xy0A.x0yB.xy0C.xy0E.xy0D.0xy = f (x)yNote: Figure not drawn to scale.17. In the figure above, ABBC=. What is the value of y?A.23-B.32C.2 D.6 E.1218. If 82x= 44x 3, what is the value of x?A.41B.1 C.3 D.4 E.6Note: Figure not drawn to
10、scale.19. In the figure above, circles A and B are tangent at C, and line l is tangent to circles A and B at points P and Q respectively. If the radius of circle A is 2 and the radius of circle B is 6, what is the length of PQ?A.6 B.43 C.62 D.8 E.1020. A small rocket is fired into the air from the t
11、op of a tower. Its height h, in feet, after t seconds, is given by: h(t) = 16t2+ 64t + 32. The rocket is 80 feet above the ground twiceonce on the way up and then again on the way down. How many seconds pass between these two times?A.1 B.2 C.3 D.4 E.5BACPlQA (1, 5)B (3, 2)yxC (9, y)1. What is the av
12、erage (arithmetic mean) of the numbers 21, 31, and 61?A.221B.61C.31D.21E.1252.1275+=A.87 B.76 C.73 D.103 E.2933. If n represents an even integer, which of the following represents an odd integer?A.3n + 2 B.n2+ 3 C.(n + 4)2 D.5n 4 E.7n + n2Note: Figure not drawn to scale.4. In the right triangle abov
13、e, what is the value of x?A.2 B.25 (approximately 4.47) C.5 D.52 (approximately 7.07) E.2 13 (approximately 7.21)5. In the figure above, square ABCD is inscribed within circle P. If the area of the circle is 8, what is the area of the square?A.22 B.8 C.16 D.162 E.32Note: Figure not drawn to scale.6.
14、 In ?ABC above, ABBC=. What is the product of the slopes of the sides of ?ABC?A.2 B.1C.21-D.1 E.27. If (x + m)(x + n) = x2 5x 36, what is the valueof mnmn+?A.94-B.365C.49D.536E.It cannot be determined from the given information.A (3, 4)B (4, 7)C (7, 6)yxPDCAB46x8. In the figure above, a rectangle is
15、 inscribed within a square of side length 4. What is the area of the shaded region?A.16 B.10 C.6 D.32 E.23311Practice Test III9. The length of a rectangle is decreased by 25% while its width is decreased by 20%. The area of the new rectangle is what fraction of the area of the original rectangle?10.
16、 If x = 4, what is the value ofx yyxy 532222-?Note: Figure not drawn to scale.11. In the figure above, point C is the center of the circle. What is the value of x?12. If xmxm101512+=, what is the value of xm?13. If 12(m + n)(c r) = 72 and 3(m + n) = 9, what is the value of c r?14. The population of bacteria in a culture doubles every 10 minutes. If the current bacteria population is 1,024, how many minutes ago was the bacteria population onl
