Express in scientific notation
2010-10-22 4:59 am
圖片參考：http://imgcld.yimg.com/8/n/HA00386248/o/701010210125813873379140.jpg
Evaluate the value of it, and express the answers in scientific notation.
*With steps!
回答 (2)
2010-10-22 5:12 am
✔ 最佳答案
2.1x10^-11*(1/7)*10^100.03*(10^10-11)
0.3(10^-1)
___________
0.3(10^-1)/6(10^-9)
0.05(10^-1+9)
0.05x10^8
5(10^6)
2010-10-21 21:32:27 補充：
Maybe the answer of mine is wrong,I do not determine
2010-10-28 21:55:08 補充：
.
參考: , 魔龍帝齊格益力多
2010-10-26 2:11 pm
2.1 x 10^(-11) divided by 7 x 10^10
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6 x10^(-9)
0.35 x 10^(-2) divided by 7 x 10^10
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1
0.35 x 10^(-2)
----------------------
7 x 10^10
0.35 x 10^(-12)
-------------------------
7
0.05 x 10^(-12)
5 x 10(-2) x 10^(-12)
5 x 10^(-14)
---------------------------------------------
6 x10^(-9)
0.35 x 10^(-2) divided by 7 x 10^10
----------------------------------------------
1
0.35 x 10^(-2)
----------------------
7 x 10^10
0.35 x 10^(-12)
-------------------------
7
0.05 x 10^(-12)
5 x 10(-2) x 10^(-12)
5 x 10^(-14)
收錄日期: 2021-04-29 16:57:54
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https://hk.answers.yahoo.com/question/index?qid=20101021000051KK01258