[PDF] SAT Mathematics Level 2 Practice Test 08.pdf | Plain Text

실전 10 1 1. If �(�)= �−32, what is the value of �(9)? (A) 0.0007 (B) 0.0370 (C) 0.2311 (D) 4.3267 (E) 6.8587 2. If 0 < x < 1, which of the following has the greatest value? (A) � (B) �2 (C) �3 (D) 1 � (E) 1 �2 3. The midpoint of the segment in space with endpoints (1,2,3) and (9, –2,9) is (A) (5,0,6) (B) (5,2,6) (C) (5, –2,6) (D) (10,0,12) (E) (4, –2,3) 4. If ������= �2, then �4+ 4�2− 5= 0 is equivalent to which of the following? (A) ������2+ 4������− 5= 0 (B) ������2+ ������− 5= 0 (C) ������4+ 4������2− 5 = 0 (D) ������8+ 4������4− 5= 0 (E) ������8+ 4������− 5= 0

실전 10 2 5. A quiz game contains two types of questions, some worth 3 points and others worth 8 points. Which of the following must be true about the score for a player in this game? I. The total score must be a multiple of 3 or a multiple of 8. II. A score of 13 can be achieved. III. Both even scores and odd scores can be achieved. (A) I only (B) II only (C) III only (D) I and II (E) II and III 6. Which of the following is an equation of the line that contains the origin and is parallel to the line 2�− � = 1? (A) 2�− � = 0 (B) 2�+ � = 0 (C) 2�+ � = 1 (D) �+ 2� = 0 (E) �− 2� = 0 7. Which of the following numbers belongs to the arithmetic sequence 1, 8, 15, 22…? (A) 77 (B) 80 (C) 92 (D) 105 (E) 150 8. If 0≤ � ≤ ������ 2 and sin � = 0.56 , then sin 4� = (A) 0.531 (B) 0.692 (C) 0.784 (D) 2.125 (E) 2.240

실전 10 3 9. A right rectangular prism has length m, width w, and height h. If h = 3 m and w=4 h, what is the volume of the prism in terms of m? (A) 9� 3 (B) 12 � 3 (C) 16 � 3 (D) 36 � 3 (E) 48 � 3 10. For positive integers n, the nth term of a given sequence is 1 ������2+2. For what value of n is the value of the nth term closest to 0.01? (A) 8 (B) 9 (C) 10 (D) 11 (E) 12 11. What is the range of the function f defined by �(�)= 3�2− 2? (A) �(�)≥ −2 (B) �(�)≥ 0 (C) �(�)≥ 2 (D) �(�)≥ 3 (E) All real numbers 12. What negative integer is 42 less than its square? (A) –8 (B) –7 (C) –6 (D) –5 (E) –3

실전 10 4 13. The distance, measured on level ground, from the base of a flagpole to a point P is 10 feet. If the angle of elevation from P to the top of the pole is 66º, which of the following is an expression for the height, in feet, of the flagpole? (A) 10 sin 66° (B) 10 cos 66 ° (C) 10 tan 66 ° (D) sin 66° 10 (E) 10 tan 66° 14. If log 2�� = 5 and log 3� = 4, then a= (A) 4 81 (B) 32 81 (C) 4 5 (D) 5 4 (E) 32 5 15. If �(�)= �� where �> 0, and if �(6)= 125 , what is the value of �(7)? (A) 2.2 (B) 15.7 (C) 127.2 (D) 145.8 (E) 279 .5

실전 10 5 16. A straight line l contains the points (0,0) and (3,4). What is the cosine of the acute angle that l makes with the x-axis? (A) 3 5 (B) 3 4 (C) 4 5 (D) 4 3 (E) 5 3 17. A red ball, a blue ball, and a green ball are placed in an empty hat. If a blindfolded person takes them out one at a time, what is the probability that the person draws them in the order red, blue, green? (A) 1 27 (B) 1 12 (C) 1 9 (D) 1 8 (E) 1 3 18. The figure above shows one cycle of the graph of � = 1+ sin � for 0≤ � ≤ 2������. If the maximum value of y occurs at U, what are the coordinates of U? (A) (������ 4,1) (B) (������ 4,2) (C) (������ 2,1) (D) (������ 2,2) (E) (������ 2+ 1,1) y x U 2π

실전 10 6 19. If �(�)= �+2 �−2, what value does �(�) approach as x approaches 3.5? (A) –1.00 (B) –0.43 (C) 0.27 (D) 2.07 (E) 3.67 20. In the coordinate plane, the circle whose equation is (�− 3)2+ (�+ 1)2= 25 is to be translated 5 units to the right and 2 units down. What is the equation of the translated circle? (A) (�− 3)2+ (�+ 1)2= 74 (B) (�+ 2)2+ (�− 1)2= 25 (C) (�+ 2)2+ (�− 1)2= 74 (D) (�− 8)2+ (�+ 3)2= 25 (E) (�− 8)2+ (�+ 3)2= 74

실전 10 7 21. The graphs show the scores on a test for five classes. In which graph does the set of scores have a standard deviation of 0? Number of Students Test Score 80 (A) Number of Students Test Score 80 (B) 90 70 Number of Students Test Score 80 (C) 90 70 100 Number of Students Test Score 60 (D) 80 40 100 Number of Students Test Score (E) 40 100

실전 10 8 22. If 0º ≤ ������≤ 90º, what are all values of ������ for which sin ������ ≤ cos ������? (A) 0° ≤ ������ ≤ 45° (B) 0° ≤ ������ ≤ 60° (C) 0° ≤ ������ ≤ 90° (D) 30° ≤ ������ ≤ 45° (E) 45° ≤ ������ ≤ 90° 23. For which of the following values of a and c does the equation ��2+ 3�+ �= 0 have no real roots? (A) � = 1,�= 2 (B) � = 1,�= −2 (C) � = −1,�= 2 (D) � = −3,�= 1 (E) � = −3,�= −1 24. In the figure, ������������ is a diameter of the circle. What is tan ������? (A) –1.73 (B) –0.57 (C) 0.57 (D) 1.00 (E) 1.73 25. If today a country’s population is 5.7 million people and is growing by roughly 1.5 percent per year, in how many years will the population find exceed 6 million? (A) One (B) Two (C) Three (D) Four (E) Five Q R S P 30 ° ������

실전 10 9 26. If � < 0, then −|�|= (A) −� (B) − 1 � (C) 0 (D) 1 � (E) � Questions 27 -28 refer to the following table and information In order to find realistic proportions for a sketch of a standing human figure, an art student took a survey, measuring the height and the shoulder width of seven people. The results of her survey are shown in the table above, along with the ratio of shou lder width to height, � ℎ, of each person she measured. SURVEY RESULTS h (height in inches) w (shoulder width in inches) � ℎ(ratio of shoulder width to height) 68 15.5 0.228 74 18 0.243 66 17.5 0.265 70 19 0.271 75 19 0.253 64.5 16 0.248 70 17 0.243 27. What is the median of the � ℎ ratios? (A) 0.243 (B) 0.248 (C) 0.250 (D) 0.251 (E) 0.271 28. If the art student uses the arithmetic mean of the � ℎ ratios to determine realistic proportions, what would the art student determine to be the height of a person whose shoulder width is 48 centimeters? (A) 11.6cm (B) 12.0cm (C) 191.9cm (D) 193.5cm (E) 197.5cm

실전 10 10 29. How many distinct four digit numbers contain the digits 1,2,3, and 4 without repetition, if the digit 2 is always immediately followed by the digit 3? (A) Four (B) Six (C) Twelve (D) Eighteen (E) Twenty -four 30. The graph of which of the following functions has exactly three distinct x- intercepts? (A) �(�)= (�2− 4)(�+ 2) (B) �(�)= (�2+ 4)(�+ 2) (C) �(�)= (�2+ 4)(�+ 2)2 (D) �(�)= (�2+ 4�+ 4)(�+ 2) (E) �(�)= (�2+ 4�− 4)(�+ 2) 31. One method for finding a given number that is in an ordered list of numbers requires a computer to repeatedly split the list in half until the number is found. For a list of n numbers, the maximum number of splits is the least integer greater than or equal to log ������ log 2. What is the maximum number of splits needed to find a given number in a list of 300,000 numbers? (A) 3 (B) 6 (C) 15 (D) 18 (E) 19 32. If �☐ is defined by the equation �☐ = �(�+ 1)(�+ 2), which of the following is equivalent to 8☐ 4☐? (A) 1☐ (B) 2☐ (C) 3☐ (D) 4☐ (E) 6☐

실전 10 11 33. An insurance company has found that proportion of claims that are resolved within t days is given by p(t)= ( ������ ������+10) 2 . How ma ny days does it take to resolve 75 percent of the claims? (A) 1 (B) 13 (C) 30 (D) 65 (E) 75 34. In the figure, points F and G represent two complex numbers. Which point represents the sum of these two numbers? (A) A (B) B (C) C (D) D (E) E 35. In the xy -plane, in how many points does the graph of the curve ��5− 2� = 3�+ �2 intersect the x-axis? (A) None (B) One (C) Two (D) Three (E) Five C D G real imaginary F 0 A E B

실전 10 12 36. In which of the following is y a function of x? I. x y –2 –10 0 –1 1 0 –1 1 0 2 II. x y –10 –2 –1 0 0 1 1 –1 2 0 III. x y –2 1 2 –1 1 2 0 1 2 1 1 2 2 1 2 (A) I only (B) II only (C) I and II only (D) II and III only (E) I, II, and III 37. Point C is 6 inc hes from plane M. To the nearest integer, what is the area, in square inches, of the portion of M that contains all points that are not more than 12 inc hes from C? (A) 33 (B) 113 (C) 339 (D) 452 (E) 565

실전 10 13 38. A portion of the graph of � = �(�) is shown above. Which of the following is the graph of � = −|�(�)|? x y 0 x y 0 (A) x y 0 (B) x y 0 (C) x y 0 (D) x y 0 (E)

실전 10 14 39. If �(�)= 3sin (������� )+ cos (2������� ), what is the period of the function f? (A) 2 (B) 3 (C) 4 (D) 2π (E) 3π 40. In the figure, which of the following could NOT be polar coordinates of points P, Q, or R? (A) (0,0) (B) (1,− ������ 4) (C) (1,7������ 4) (D) (2,������ 2) (E) (2,3������ 2) 41. If the function f is symmetric with respect to the line � = 3 and if �(−1)= −1, what is the value of �(7)? (A) –7 (B) –1 (C) 1 (D) 3 (E) 7 42. If � = 3cos ������ and � = 3sin ������, where ������ is a real number, which of the following must be true? (A) �+ � = 3 (B) �2+ �2= 3 (C) �2+ �2= 9 (D) �2− �2= 9 (E) −�2+ �2= 9 x y Q R P 2 1 2 1

실전 10 15 43. If �(�)= �4− 4�+ 1 and �(�)= �(�+ 2), which of the following statements are true? I. f and g have one common zero. II. The graph s of f and g have one intersection point. III. f and g have the same range. (A) I only (B) II only (C) III only (D) I and II (E) II and III 44. If sin (2�)= � and 0 < x < ������ 2, then 2 sin � is equal to which of the following? (A) a (B) � 2 (C) 2a (D) a cos � (E) �sec � 45. What are the coordinates of the point that is the reflection of the point (3,2) through the line � = −�? (A) (–3,–2) (B) (–3,2) (C) (–2,–3) (D) (–2,3) (E) (3, –2) 46. In Δ ABC , AB =5, BC =6, and AC =7. To the nearest degree, what is the measure of ∠��� ? (A) 12º (B) 48º (C) 66º (D) 78º (E) 102º

실전 10 16 47. If p, s, and t are distinct positive primes, what is the least perfect cube that is divisible by ������2�5�7? (A) ������3�3�3 (B) ������3�6�9 (C) ������9�9�9 (D) ������6�15 �21 (E) ������8�125 �343 48. On a 20 -kilometer trip, Chris averaged 40 kilometers per hour for the first 10 kilometers and 80 kilometers per hour for the last 10 kilometers. What was her average speed, in kilometers per hour, for the 20 -kilometer trip? (A) 65 (B) 63 1 3 (C) 60 (D) 53 1 3 (E) 50 49. If 4�2+ 3�2= 16 is equivalent to �2 �2+ �2 �2=1, which of the following could be values of a and b? (A) � = 2,� = √3 4 (B) � = 2,� = 4 √3 (C) � = 2,� = 16 3 (D) � = 4,� = 3 16 (E) � = 4,� = 16 3

실전 10 17 50. A function f has the property that �(� 2)= √1+������(�) 2 for 0≤ � ≤ 1. If �(�)= 0, where 0≤ � ≤ 1, what is the value of �(� 4)? (A) 0 (B) 0.35 (C) 0.71 (D) 0.92 (E) 0.98

실전 10 18

실전 10 19 1. b 36. d 2. e 37. c 3. a 38. d 4. a 39. a 5. c 40. e 6. a 41. b 7. c 42. c 8. b 43. e 9. d 44. e 10. c 45. a 11. a 46. d 12. c 47. b 13. c 48. d 14. b 49. b 15. e 50. d 16. a 17. d 18. d 19. e 20. d 21. a 22. a 23. e 24. a 25. d 26. e 27. b 28. c 29. b 30. e 31. e 32. a 33. d 34. a 35. c