SAT数学考试的真题解析大家注意一下.

2017-08-05 作者： 197阅读

　　SAT数学其实并不难，只是因为全是英文，所以很多学生看到就头晕，做不下去，这时就需要我们提高自己的SAT词汇量了，下面小编整理出了两道SAT数学试题，供大家熟悉题型，熟悉SAT考试。

　　1. What is the length of the line segment in the x-y plane with end points at (-2,-2) and (2,3)?

　　A. 3

　　B. √31

　　C. √41

　　D. 7

　　E. 9

　　Correct Answer: C

　　解析:

　　Sketch a diagram and calculate the distance (hypotenuse of a right triangle) using Pythagoras theorem.

　　这一道SAT数学题，其实不难，最多我们高中水平。只要我们SAT词汇量够，能看懂这道SAT数学试题，就绝对做得对。

　　Vertical height of triangle = 5 ; horizontal side = 4 ; hypotenuse = √(25 + 16) = √41

　　2. n is an integer chosen at random from the set{5, 7, 9, 11 }

　　p is chosen at random from the set{2, 6, 10, 14, 18}

　　What is the probability that n + p = 23 ?

　　A. 0.1

　　B. 0.2

　　C. 0.25

　　D. 0.3

　　E. 0.4

　　Correct Answer: A

　　解析:

　　Each of the integers in the first set could be combined with any from the second set, giving a total of 4 x 5 = 20 possible pairs. Of these the combinations that could give a sum of 23 are (5 + 18), and (9 + 14). This means that the probability of getting a sum of 23 is 2/20 = 1/10

　　上面就是小编给大家整理出的两道SAT数学试题，希望对大家有所帮助。其实只要我们SAT词汇量够，这些SAT数学试题根本不是问题，所以要考SAT的同学们就必须得学好英文，增加自己的词汇量。