4. Ewpress the following numbers in scientific notation.
a) 32300
b) 0.00085
c) 3.61x10-3+2.3x10-4
d) (5.03x10-2) x (7.3x10-2)0
更新1:
what is ^?
f. 2-3 approximation help!
2009-07-18 1:13 am
p.6
4. Ewpress the following numbers in scientific notation.
a) 32300
b) 0.00085
c) 3.61x10-3+2.3x10-4
d) (5.03x10-2) x (7.3x10-2)0
4. Ewpress the following numbers in scientific notation.
a) 32300
b) 0.00085
c) 3.61x10-3+2.3x10-4
d) (5.03x10-2) x (7.3x10-2)0
回答 (1)
2009-07-18 1:23 am
✔ 最佳答案
a. = 3.23 x 10000 = 3.23 x 10^4.b. 0.00085 = 8.5/10000 = 8.5 x 10^(-4).
c. 3.61 x 10^(-3) + 2.3 x 10^(-4)
= 3.61 x 10^(-3) + 0.23 x 10^(-3)
= [3.61 + 0.23] x 10^(-3)
= 3.84 x 10 ^(-3).
d. since a^0 = 1, so the answer is 5.03 x 10^(-2).
收錄日期: 2021-04-25 22:36:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090717000051KK01379