首页
登录
职称英语
[img]ct_2image034[/img]In the equation above, k, r, s, t, and v represent posit
[img]ct_2image034[/img]In the equation above, k, r, s, t, and v represent posit
游客
2024-01-12
22
管理
问题
In the equation above, k, r, s, t, and v represent positive numbers. Multiplying which one of these numbers by 2 will reduce the value of n to 1/2 of its present value ?
选项
A、k
B、r
C、s
D、t
E、v
答案
D
解析
在左面方程中,k,r,s,t和v都是正数(positive number),其中哪个数乘以2将使n值减少到某前值的1/2?
解:本题的正确答案为(D)。n是一个分式,要使一个分式的值减小一半,要么使分式的分子的值减小一半,要么使分式的分母的值增加一倍。本题所给出的繁分式的分母为上,因此只有把t的值增加一倍,才能使n的值减小一半。
转载请注明原文地址:https://tihaiku.com/zcyy/3356640.html
相关试题推荐
Lastyear,supportforthesocialandbehavioralsciencesrepresentedonlyabout
Recentlyimplemented"shift-workequations"basedonstudiesofthehumansleep
Theproposedurbandevelopmentzonesdonotrepresentanewprinciple:itwasem
In1973mortgagepaymentsrepresentedtwenty-onepercentofanaveragethirty-ye
ArepresentativeoftheWomen’sBureauoftheUnitedStatesDepartmentofLabor
Forallrealnumbersv,theoperationv*isdefinedbytheequationv*=v-(v/3)
(x-4)and(2x+3)arethesolutionsetsforwhatequation?Thesolutionsetsare
Whatistheequationofalineperpendicularto3x=2-ywiththey-intercept8?
Whatistheequationofalineparalleltoy=4x-12thatcrossesthey-axisat3?
4x-y=633y+x=6Lineuptheliketermsinbothequations:4x-y=63x+3
随机试题
[originaltext]Howdoyougetalongwithyourcolleagues?[/originaltext][origin
DoyouknowJimmy?Heis______.A、toomuchthefamilymanB、toomuchofafamily
Learningisanessentialprocessforlivingthingstoacquirenecessaryskill
下列关于胎盘内物质交换,描述正确的是A.胎盘内物质交换部位主要在血管合体膜 B
乳痈溃后乳汁自疮口溢出会形成A.乳衄 B.乳漏 C.乳发 D.乳痨
共用题干 APowerfuInfluenceTherecanbeno
某宣传部门为喜迎伟大祖国70华诞,特组织n名来自全国各地的党员进行一次红色
某房地产企业为增值税一般纳税人,2017年6月1日购买一块地开发房地产项目,支付
施工单位的()应当经水行政主管部门安全生产考核合格后方可参与水利工程投标。A.
下列有关甲亢术前准备,错误的是A.继续服用他巴唑 B.体位锻炼 C.术前备皮
最新回复
(
0
)