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初三上半年测试 JUEC1

Authored by Peir Seng Yeo

Mathematics

9th Grade

Used 1+ times

初三上半年测试 JUEC1
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10 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

已知 9n2=2439^{n-2}=243  ,求n的值。

3

 72\frac{7}{2}  

4

 92\frac{9}{2}  

5

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 12log819+3log162+log9 19\frac{1}{2}\log_{81}9+3\log_{16}2+\log_9\ \frac{1}{9}  的值。

 12-\frac{1}{2}  

0

1

 1121\frac{1}{2}  

2

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

求数据 0,1,2,2,5,9,6,6,3,2 的众数与中位数之和。

4

4.5

5

8

8.5

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

在20个数据中,8,4,9和6出现的频数分别为5,8,4,3, 求这20个数据的平均数。

6.6

6.5

6.4

6.3

6.2

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

图中的圆形图表示320名学生最喜爱的水果。求最喜爱苹果与最喜爱榴莲的学生人数之差。

32

48

80

112

168

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

求数据 5,4,6,9,8,6,9,9,5,6,4,6,5 的众数。

4

5

6

8

9

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

图中的圆形图表示某人的月薪分配。若此人的月薪是RM1800,求此人每月的储蓄。

RM 150

RM 300

RM 350

RM 400

RM 450

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