立方根怎么算简单
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 19:45:00
若关于x的一元二次方程x^2-x+k=0(k为常数)有两个相等实数根,则k=____
如果关于x的一元二次方程x²-x+k=0(k为常数)有两个相等的实数根,那么k__
( )It took him half an hour to walk ___ the( )It took him half an hour to walk ___ the forest.A.across B.over C.cross D.through
It took them half an hour by bus.(改为同义句) The—— ——took them half an hour.
it took them harf an hour by bus.(改为同义句) the _ _ took them half an hour.
it took him half an hour to walk____the forest.A.crossB.overC.croosD.through
已知a满足|2007-a|+跟号a-2008=a,那么a-2007^2的值为
The child with his teacher often ____(run)for half an hour in the morning.填动词形态.
These children often____their teacherA:play an important role inB:keep a check onC:play a trick on D:keep track of 选哪个?为什么?(我现在正在初学英语,
The children often help____(帮助) in their study.
the ___ (child) are talking to their teacher.
Children give their fathers presents or tret them to dinner.At the weekend our teacher often giveus a lot of homework to do ,这两句中的 to各是什么用法
如果f(a+b)=f(a)+f(b),且f(1)=2,则f(2)/f(1)+f(4)/f(3)+f(6)/f(5)+…f(2006)/f(2005)+f(2008)/f(2007)=?
a+2/3=b/4=c+5/6,且2a-b+3c=21,试求a:b:c的值.
倒数的大小与原来两数的大小之间的关系是什么
倒数的大小与原来两数的大小之间有什么关系?(要准确啊)
一个零件只有3毫米长,画在图纸上的长是8厘米,这幅图的比例尺是(
a、b互为倒数,如果A=1+a分之一+1+b分之一,B=1+a分之a+1+b分之b,比较A、B两数大小.A=(1+a/1)+(1+b/a) B=(1+a/a)+(1+b/b) 加括号的是一个数
a、b互为倒数,如果A= 1\1+a + 1\1+b ,B= a\1+a + b\1+b ,试比较A、B两数的大小.
Write about your life 20 years from now .作文.要8年级的水平,要用副词.
how about your life in(r )years
解方程:X的3次方-9x=x的平方-9
我花半个多小时读英语.I spend____ ____ half an hour ____ English .
9X的平方=121求X的值
I spend ____ ____ half an hour ____English.我花半个多小时读英语.
-x2-2/9x+32/9=0,负X平方减九分之二X加九分之三十二等于0,X怎么求啊?
我花半个多小时读英语 英语 I spend___ ___half an hourI ___English
“He spends half an hour reading English every morning"的同义句谢谢了,
用幽默的语言完成对话1.一个年轻人问一个满口假牙的老头:“你的牙齿是你自己的么?”老头回答说:2.一位错过站的乘客慌慌张张的擂门大喊:“售票员,下车!”而售票员迅速说道:同志们
对话时幽默句子
汉字间的幽默对话,这些句子该怎么回答?电对曳说:“好好歇会行不,你这姿势不累呀?”分对掰说:“咋的,当官有架子了,小手还背上了呢?”兵对丘说:“兄弟,踩上地雷了吧,两腿咋都没了?”
有什么幽默的对话,在生活中的,能够说的出来的..我要的是真正的幽默而不是滑稽.