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
2025-02-24
27
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://www.tihaiku.com/zcyy/3971202.html
相关试题推荐
Whichofthefollowingequationscanbeusedtofindthevalueofxif7lessth
Forallrealnumbersv,theoperationv*isdefinedbytheequationv*=v-(v/3)
[img]ct_gre5image018[/img]Thediagramrepresentsarectangulargarden.Theshad
[img]ct_2image034[/img]Intheequationabove,k,r,s,t,andvrepresentposit
Forx=4,3x2-5x+9=______Tosolvetheequation,substitute4forx:3(42)-5(
Whatistheequationofalineperpendicularto3x=2-ywiththey-intercept8?
4x-y=633y+x=6Lineuptheliketermsinbothequations:4x-y=63x+3
3x-y=184x=24-6yThefirststepisrearrangingtheequationstoalignlik
Whatistheareaofacirclewithacircumferenceof14πinches?Theequationf
If7y+9representsanoddinteger,whichofthefollowingrepresentsthenext
随机试题
Readthearticlebelowaboutteam-building.Choosethecorrectwordtof
Americahasnowadoptedmore______European-styleinspectionsystems,andtheinc
CompletetheCounsellor’snotes.UseNOMORETHANTHREEWORDSforeacha
An"applepolisher"isonewhogivesgiftstowinfriendshiporspecialtreat
手动报警按钮采用壁挂方式安装时,其底边距地高度宜为(),且应有明显标识。手动火灾
适用于联合两种以上抗菌药物联合应用的疾病是()。A:败血症 B:骨髓炎 C
便秘的基本病机是A.脾失运化 B.大肠传导失常 C.肝胃不和 D.大肠湿热
阿托品松弛平滑肌作用强度顺序是A:胆管、支气管>胃肠>膀胱 B:膀胱>胃肠>胆
表现为“富贵不能淫,贫贱不能移,威武不能屈”的阶段是() A.依从 B.认同
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
最新回复
(
0
)