2. 外语
  3. The number 0.001 is how many times greater than the number(0.0001)2?

The number 0.001 is how many times greater than the number(0.0001)2?

admin2013-05-19  39
问题 The number 0.001 is how many times greater than the number(0.0001)2?
选项 A、10
B、103
C、105
D、107
E、109
答案C
解析 The correct answer is C. To solve this problem, first square the value 0.0001:
(0.0001)2 = 0.00000001
This value is equivalent to 1×10-8, because the decimal point is moved 8 places to the left. On the other hand, 0.001 is equivalent to 1 x 10-3, because the decimal point is moved 3 places to the left. Thus, because= 105,
0.001 is 105 times greater than(0.0001)2.
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