各位網友,能否替我解決以下的難題?
Express the following numbers in scientific notation.
(a)12345.6789 (b)0.00987 (c)32300 (d)0.00085 (e)3.61×10¯³+2.3×10¯4
(f)(5.03×10¯²)×(7.3×10¯²)
數學暑期功課.......急(10分)
2007-08-23 12:32 am
回答 (1)
2007-08-23 1:44 am
✔ 最佳答案
(a)1.23456789x10^4(b)9.87x10^-3
(c)3.23x10^4
(d)8.5x10^-4
(e)3.61x10^-3+2.3x10^-4
=0.361x10^-4+2.3x10^-4
=2.661x10^-4
(f)(5.03x10^-2)(7.3x10^-2)
=5.03x7.3(10^-4)
=36.719x10^-4
=3.6719x10^-3
收錄日期: 2021-04-29 21:45:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070822000051KK03673