tailieunhanh - SAT II Math Episode 2 Part 5

Tham khảo tài liệu 'sat ii math episode 2 part 5', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Mathematics Tests 255 45. The correct answer is E . Method 1 72x - - Ỉ3y y ĩ 2x 3y 5 To eliminate y multiply the first equation by 3 and the second equation by 73. Then add the equations. 3j2x-3yỈ3y 3yÍ5 2 Ỉ3x 3 Ỉ3y 5-73 372 25 3 375 573 Method 2 5 3 46. The correct answer is C . A proof of this type that disproves all possible alternatives to a desired conclusion is an indirect proof. 47. The correct answer is D . R 1 3 5 .17 19 S 3 6 9 12 .15 18 R A S 3 9 15 3 elements 48. The correct answer is C . 32x 200 34 81 and 35 243 Therefore 2x is between 4 and 5 or x is between 2 and 3. 49. The correct answer is B . If the graph of a quadratic funciton y fx is tangent to the x-axis the roots offix 0 are real equal and rational. 50. The correct answer is C . log 81 4 X4 81 34 81 x 3 ARCO SAT II Math arco Part VI THREE PRACTICE MATHEMATICS TESTS LEVEL IIC PRACTICE TEST I Answer Sheet Math Level IIC 1 2 3 4 5 6 @ 7 8 9 10 11 12 13 14 15 16 @ 17 @ 18 19 20 21 @ 22 23 @ 24 25 26 @ 27 28 29 30 31 32 @ 33 34 35 36 37 @ 38 39 40 41 @ 42 @ 43 44 45 46 47 @ 48 49 50 Directions For each question in the sample test select the best of the answer choices and blacken the corresponding space on this answer sheet. Please note a You will need to use a calculator in order to answer some though not all of the questions in this test. As you look at each question you must decide whether or not you need a calculator for the specific question. A four-function calculator is not sufficient your calculator must be at least a scientific calculator. Calculators that can display graphs and programmable calculators are also permitted. b Set your calculator to radian mode or degree mode depending on the requirements of the question. c All figures are accurately drawn and are intended to supply useful information for solving the problems that they accompany. Figures are drawn to scale UNLESS it is specifically stated that a figure is not drawn to scale. Unless otherwise indicated all .

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