Estimate 437.58/3.44+(1.603)2次方. Give the answer in whole number.
A.68
B.73
C.78
D.83
請列式！
數學 急~~~~~~~~~~~
2007-01-19 6:40 am
回答 (3)
2007-01-19 6:47 am
✔ 最佳答案
我在題目中加上了括號令題目更易看清，希望我的理解沒錯。Estimate 437.58/[3.44+(1.603)2] Give the answer in whole number.
A.68
B.73
C.78
D.83
437.58/[3.44 + (1.603)2]
≈ 438/[3.44 + 1.62]
= 438/[3.44 + 2.56]
= 438/6
= 73
所以答案是 B.73
2007-01-20 7:12 am
step very clear!!
2007-01-19 7:03 am
use you cauculator (casio fx 50f)
1.603.2shift x 2 ans=2.569609 save m+
3.44+ (save m+)= 6.009609 save kout 1
437.58/6.009609= B.73
1.603.2shift x 2 ans=2.569609 save m+
3.44+ (save m+)= 6.009609 save kout 1
437.58/6.009609= B.73
收錄日期: 2021-04-23 13:16:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070118000051KK04768