[計量] 兩題數學
A developer has land that has x feet of lake frontage.
Theland is to be subdivided in to lots, each of which
is to have either 80 feet or 100 feet of lake frontage.
If 1/9 of the lots are to have 80 feet of frontage each
and the remaining 40 lots are to have 100 feet of frontage
each, what is the value of x?
A)400
B)3200
C)3700
D)4400
E)4760
ANS)D
Which of the following sets of numbers has the greatest stander deviation?
A)2,3,4
B)2.5,3,3.5
C)1,1.25,1.5
D)-2,0,2
F)-20,21,21.5
ANS)D
要如何解 謝謝
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紅紅的花開滿了木棉道~長長的街好像在燃燒
沈沈的夜徘徊在木棉道~輕輕的風吹過了樹梢
木棉道我怎能忘了~那是去年夏天的高潮~木棉道我怎能忘了~那是夢裡難忘的波濤
啊 愛情就像木棉道~季節過去就謝了
愛情就像那木棉道~蟬聲綿綿斷不了
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※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 114.44.187.211
推
10/19 20:59, , 1F
10/19 20:59, 1F
※ 編輯: orthopt 來自: 114.44.187.211 (10/19 21:26)
推
10/19 21:27, , 2F
10/19 21:27, 2F
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