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SAT数学练习题含详细答案解析(4)

互联网2017-08-09 15:02:08

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摘要：本文分享5道SAT数学练习题，每道真题后面都有答案和详细的解析，希望同学们在练习的时候先不看答案，看看自己的能做对几道题，然后再与答案对照，找出错题原因，针对自己的SAT数学复习进行查漏补缺。

要想SAT数学成绩有所提高，坚持每天做练习是十分必要的，就像这样每天完成5道SAT数学题目，并进行总结，日积月累，成绩就会有明显地提高。本文分享数学练习题的第4部分。

1. If f(x) = (x + 2) / (x-2) for all integers except x=2, which of the following has the greatest value?

A. f(-1)

B. f(0)

C. f(1)

D. f(3)

E. f(4)

2. ABCD is a square of side 3, and E and F are the mid points of sides AB and BC respectively. What is the area of the quadrilateral EBFD ?

A. 2.25

B. 3

C. 4

D. 4.5

E. 6

3. If n ≠ 0, which of the following must be greater than n?

I 2n

II n²

III 2 - n

A. I only

B. II only

C. I and II only

D. II and III only

E. None

4. After being dropped a certain ball always bounces back to 2/5 of the height of its previous bounce. After the first bounce it reaches a height of 125 inches. How high (in inches) will it reach after its fourth bounce?

A. 20

B. 15

C. 8

D. 5

E. 3.2

5. n and p are integers greater than 1

5n is the square of a number

75np is the cube of a number.

The smallest value for n + p is

A. 14

B. 18

C. 20

D. 30

E. 50

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