1,If S is the sum of the reciprocals of the consecutive inte
![](images/u2507.png)
1,If S is the sum of the reciprocals of the consecutive integers from 91 to 100,inclusive,which of the following is less than
I.1/8 II.1/9 III.1/10
A.None
B.I only
C.III only
D.II and III only
E.I,II,and III
2,A certain quantity is measured on two different scales,the R-scale and the S-scale,that are related linearly.Measurements on the R-scale of 6 and 24 correspond to measurements on the S-scale of 30 and 60,respectively.What measurement on the R-scale corresponds to a measurement of 100 on the S-scale?
A.20
B.36
C.48
D.60
E.84
看不出规律哦,不知道有什么关联...
I.1/8 II.1/9 III.1/10
A.None
B.I only
C.III only
D.II and III only
E.I,II,and III
2,A certain quantity is measured on two different scales,the R-scale and the S-scale,that are related linearly.Measurements on the R-scale of 6 and 24 correspond to measurements on the S-scale of 30 and 60,respectively.What measurement on the R-scale corresponds to a measurement of 100 on the S-scale?
A.20
B.36
C.48
D.60
E.84
看不出规律哦,不知道有什么关联...
已提交,审核后显示!提交回复
共3条回复
参差宜白昼 共回答了16个问题
|采纳率87.5%- 1.
看了上面的答案 咱先翻译一下题目吧.
S是91到100(不重复)的倒数的和.
S=1/91+1/92+...+1/100>1/100+1/100+...+1/100=1/10
故S>1/10.
S=1/91+1/92+...+1/100 - 1年前
zhang3309021985 共回答了3个问题
|采纳率- 第一题选A,第二题不知道没看出来,第一题从91加到100的和为955,s=1/955,1/8=100/800 肯定大于s,1/9=100/900 也肯定大于s,1/10=955/9550 ,s=10/9550,所以s<1/10 所以没有一个比s小的
- 1年前
leozhang 共回答了90个问题
|采纳率- 1.
1/91+1/92...+1/100<10 x 1/91=10/91<10/90=1/9<1/8
所以S小于1/9,也就小于1/8
1/91+1/92...+1/100>10 x 1/100=1/10
所以S大于1/10
所以答案选C
2.
24R-6R=60S-30S
18R=30S
18R/30=S
100S=100x18R/30=60R
答案D - 1年前
相关推荐
大家在问
- 1英语语法比want 征求某人意见语气更加委婉的单词是什么?怎么用?还有,"像我这样做"怎么翻译?就是请某人吃饭,问他想不
- 24公顷等于多少平方米
- 3下列加点字的解释全正确的一项是( ) A.革灭殆
- 4已知a+b=2,ab=-3求代数式2a的3次方b+2ab的3次方的值.
- 5已知a,b,c满足c<b<a且ac<0,则下列选项中不一定能成立的是( ) A. c a 小于 b a B. b-a
- 6英语翻译我在做论文,图标要求要英文写,我给出大家写出汉字,不用逐字逐句的翻译,就按一般的论文图标翻译就行,但要精准.·常
- 7法国cela面试问题都有什么怎么回答(写法语和中文翻译)
- 8某地电信资费调整后,固定电话市话资费标准为:通话时间不超过3分钟收费0.2元,超过3分钟,以后每增加1分
- 9翻译词组。 1.遭受,经历
- 10把不劳而获翻译成英文并用上gain,怎么整
- 11如图,在平行四边形ABCD中,对角线AC的垂直分别与AD.AC.BC相交于点E.O.F.求证:四边形AFCE是菱形
- 12问一道关于动量守恒的高一物理题质量为2kg的长木板A的上表面左端有一质量为1kg的物块B,它们静止在光滑水平地面上,μA
- 13氢气和氯气生成氯化氢的这个反应的反应热问题.
- 14What honest boy!And he is best student of all.A a; a B an; t
- 15九疑山图记的写法与与朱元思书的写法有什么异同