1 If x is a negative inter, which of the following expressions has the least value? A x^2-0.50 B x^2-0.51 C x^3-0.502 D x^3-0.511 E x^4-0.512 Answer: D 我觉得不管包不包括-1都不该D 呀
2 For every positive even integer n, the function h(n) is defined to be the product of all the even integers from 2 to n, inclusive. If p is the smallest prime factor of h(100)+1, then p is A between 2 and 10 B between 10 and 20 C between 20 and 30 D between 30 and 40 E grater than 40 Answer: E 这题是怎么一个思路呢？完全不知道
3 The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and inversely proportional to the concentration of chemical B present. If the concentration of chemical B is increased by 100 percent, which of the following is closest to the percent change in the concentration of chemical A required to keep the reaction rate unchanged D 40% increase 我觉得应该100%呀，
可没这个选项 Answer: D
4 The number 75 can be written as the sum of the squares of 3 different positive integers. What is the sum of these 3 integers? A:13 Answer: A 不知道应该怎么做，也不可能试数亚 | 
