Question #1: If a, b and c are consecutive integers, a b c, and a + b + c = 96, what is the value of b? (a) 30 (b) 31 (c) 32 (d) 33 (e) 34 Solution: If a, b and c are consecutive numbers, b = a + 1 and c = a + 2. Then, a + (a + 1) + (a + 2)...
Question #1: While competing in a marathon event, John is behind Mike by 100 yards. John runs (x - 2) yards while Mike runs (x + 10) yards. What is the new distance between them? (a) 112 yards (b) 108 yards (c) 102 yards (d) 110 yards (e) T...
Question #1: In the x,y plane, which of the following statements are true? I. Line y + x = 5 is perpendicular to line y - x = 5. II. Lines y + x = 5 and y - x = 5 intersect each other on the y axis. III. Lines y + x = 5 and y - x = 5 inters...
Question #1: f(x) = 1/(x + 1) and g(x) = x + 1. What are the values of x for which f(x) = g(x)? (a) x 1 = 0 and x 2 = 2 (b) x 1 = 0 and x 2 = 1 (c) x 1 = 2 and x 2 = -2 (d) x 1 = 0 and x 2 = -2 (e) x 1 = 1 and x 2 = -2 Answer: f(x) = g(x) m...
Question #1: If a b = 18 and a / b = 2, a 0, b 0 then: (a) a = 18 and b = 1 (b) a = 9 and b = 2 (c) a = 18 and b = 9 (d) a = 6 and b = 3 (e) a = 6 and b = 6 Answer: a / b = 2 a = 2b. ab = (2 b) b ab = 2 b 2 . 2 b 2 = 18 b 2 = 9, b = 3 becau...
Averages are a statistics that are used to get information on a set of data. The arithmetic mean of a set of n numbers is equal to the sum of the numbers divided by n. SAT math questions that use the word average refer to the arithmetic mea...
Angles Review Angle CMB = Angle AMD Angle AMD + Angle CMA = 180 o Example of SAT question with angles: In the figure below, angle AMB is 100 o , angle BMD is 40 o and angle CME is 60 o . What is the value of angle CMD? Figure not drawn to s...
SAT考试容错率，是指在SAT2（美国高考）中，即使你的答题没有全对，你也可以拿到满分。比如说，物理总共有75道题，你只要做对63道题，你就可以拿到满分。 因为每次考试考试难度不...
Question 1: How many integers between 1 and 50 contain the digit 3? Question 2: |2x + 1| = 3 |x + 5| = 6 What value of x satisfies both of the equations above? Question 3: The length of rectangle B is 50% longer than the length of rectangle...
Question 1: In the x,y plane, what is the distance between origin and the (4,3) point? Question 2: The sum of 4 consecutive integers is 26. What is the product of the 4 numbers? Question 3: 60% of the players of a team score 5 points each d...
Question 1: If ab = 2a - 3b for all real numbers a and b, what is 2 (32) ? Question 2: A regular polygon has 6 sides. What is the degree measure of the angle, within the polygon, between any two sides? Question 3: A cubic box 'A' has sides...
SAT数学做题时需要用到的公式 1.抛物线：y = a(x^2) + bx + c （y等于ax 的平方加上 bx再加上 c ） a 0时开口向上 a 0 ) 5. 椭圆 1）周长公式：L=2b+4(a-b) 椭圆周长定理：椭圆的周长等于该椭圆短半...
Question #1: 50% of US college students live on campus. Out of all students living on campus, 40% are graduate students. What percentage of US students are graduate students living on campus?...
Question #1: The sum of the two solutions of the quadratic equation f(x) = 0 is equal to 1 and the product of the solutions is equal to -20. What are the solutions of the equation f(x) = 16 - x ? (a) x 1 = 3 and x 2 = -3 (b) x 1 = 6 and x 2...
转载请注明来自无忧留学 Question 1: What is the closest approximation of the solution of the equation 2 x - 1 = 3 x + 1 ? (a) -4.42 (b) -5.81 (c) -3.22 (d) 4.93 (e) 3.33 log(2 x - 1 ) = log(3 x + 1 ) (x - 1)log2 = (x + 1)log3 x(lo...
转载请注明来自无忧留学 Question #1: If f(x) = (2x + 5)/(4x-7), what value does f(x) approach as x gets infinitely larger? (a) 1/2 (b) 5/7 (c) 2/7 (d) 5/4 (e) 1 Answer: As x gets infinitely larger, lim[(2x + 5)/(4x-7)] = lim[(2 +...
转载请注明来自无忧留学 Question 1: If the value of tan(-2a) is 2, what is the value of tan(2a)? (a) -2 (b) 2 (c) -4 (d) 4 (e) 3 We know that tan() = -tan(-), any , so tan(2a) = - 2 Question #2: What is sec(a)sin(a) + csc(a)cos(a)...
SAT2数学Level 1习题一 Question #1: If f(x) = x and g(x) = x, x 0, what are the solutions of f(x) = g(x)? x = 1 x 1 = 1, x 2 = -1 x 1 = 1, x 2 = 0 x = 0 x = -1 Question #2: What is the length of the arc AB in the figure below, if O is t...
数量词 一些a range of ; a variety of ; a series of ; an array of 无数innumerable ; countless 许多plenty of ; many ; much ; a great deal of ; a lot of ; ample 非常多（大）的tremendous 依序列举list in sequence...
功能用法与功能词用法 根据according to; on the basis of; on the ground of (that); in the light of; in line with; in accordance with 逃避问题evade the question 增大enlarge; extend; aggrandize 澄清clarify; make clear 赔偿...
