南一國中數學2下ch1-3

南一國中數學2下ch1-3

8th Grade

10 Qs

quiz-placeholder

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南一國中數學2下ch1-3

南一國中數學2下ch1-3

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

數學 南一

Used 11+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A市的人口數逐年成等比數列成長,若5年前有20萬人,現在有25萬人,則5年後A市的人口數為多少萬人?

30

31.25

32

35

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

a1=1,且a1 , a2 , a3 , ……為等比數列,則下列敘述何者錯誤

a6>0,則a60>0

a6<0,則a60<0

a60>0,則a102>0

a8<0,則a96>0

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一個數列是等差數列也是等比數列?

1 , 1 , 1 , 1 , 1

0 , 0 , 0 , 0 , 0

0 , 2 , 4 , 6 , 8

1 , -1 , 1 , -1 , 1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

將20、65、245各減去同一數後會成為等比數列,則此等比數列的公比為何?

3

4

5

6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

8

-8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

某種細菌一隻每20分鐘分裂一次,有此種細菌1隻,經過四小時後,會分裂成幾隻?

1024

2048

4096

5124

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

將2公分厚的白紙對折,至少需折n次,其厚度才能到達2公尺,則n值為何?

7

8

9

10

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