2024美国学术能力评估考试（SAT）真题模拟04-17

1、Mr. Jones administered a test to the students in each of his three Algebra II classes. The average (arithmetic mean) of all the students in his classes was 82.8. What is the average for his Period 8 class?
（单选题）

A. 80

B. 81

C. 82

D. 83

E. 84

试题答案：E

2、Hannah finished building her new all-purpose projects room last year, and she has been working in the room ever since.（单选题）

A. and she has been working in the room ever since

B. and since that time she has worked there

C. where always since she works

D. she has been working in that room ever since

E. and since then is working there

试题答案：A

3、If x² = r² + 2rs +s², y² = r² - s², x >0, and y >0, then x/y = ______.（单选题）

A.

B.

C.

D.

E.

试题答案：B

4、If (2y+ k) ² =4y²-12y+ k², what is the value of k?（单选题）

A. 3

B. 1

C. -1

D. -2

E. -3

试题答案：E

5、If (c+1)²＝-b, which of the following statement could be true?
I. c>0
II. c＝0
III. c<0（单选题）

A. None

B. I only

C. III only

D. I and II only

E. I, II, and III

试题答案：E