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当x的值是多少时,x的平方和2x正好相等?还要算式! 式子：2X-3/5与2X-3/3的值相等,则X的值为 （ ） Betty( )swimming,but she（ ) swim well.A：like;do B:likes;does C:likes;don't D:likes;doesn't 一矩形的长和宽之比是3:2,若矩形的长和宽分别增加3米和2米,则矩形的面积增加30平方米,求这个矩形的长和宽shuo ming li you! 一矩形的长和宽的比为3:2,若矩形的长和宽分别增加3米和2米,则矩形面积增加30平方米,长和宽是? we go home three times a week.对划线部分提问three times a week是划线部分 _you often go swimming three times a week?No,I _ 在平面直角坐标系中,直线y=2x+m与y轴交于点a,与直线y=-x+4交于点b（3,n）,p为直线y=-x+4上一点.求（1）m,n的值；（2）当直线ap最短时,求p的坐标,并求此时△apb的面积. 在平面直角坐标系中,直线y=x-m与直线y=2x-4的交点在x轴上,则m=? 如图,在平面直角坐标系xOy中,已知直线i1:y=1/2x与直线l2:y=-x+6相交于点M,直线l2与x轴相交于点N．1）求M,N的坐标．（2）矩形ABCD中,已知AB=1,BC=2,边AB在x轴上,矩形ABCD沿x轴自左向右以每秒1个单位长 一条公路长480米,甲行完全程要12时,乙行完全程要10时.（1）甲乙两车同时从 两地相向而行要几小时相遇?（2）如果甲先行2小时后,乙再与甲相向而行,再行多少小时两人相遇?（3）去掉480,在计 inta[ ]={1,2,3,4};int*p=a;则下面哪项正确表示数组元素的地址：（A）&(a+1)（B）a++（C）&p（D）&p[2] #include#include#include#include#include#include#include#includeint COLS = 640,ROWS = 480;void selectpage(register char page){union REGS r;r.x.ax = 0x4f05;r.x.bx = 0;r.x.dx = page;int86(0x10,&r,&r);}unsigned char set_SVGA_mode(int vmode){union REGS r 杭州33路公交早晨几点开第一班?拜托各位大神 do homework造两个句子 蒸时间少怕吃闹肚,保险的时间是多少? 用 do me’ s homework造一个一般现在时 一般过去时 一般将来时 现在进行时的句子谢谢! 第一,两个数相乘,如果一个因数增加3,积就增加54,如果一个因数减少4,积就减少96,原来两个因数的积是多少?第二,已知九个数平均数是63,去掉其中一个数之后余下的数平均为62,去掉的数是多少? 1.They do their homework vevry day.(改为否定句) 2.Jim stands under the tree.(改为现在进行时表达) 长方形的周长是14.4分米,长是宽的1.4倍.长方形的面积是多少平方米?要五年级的算式,你那种方法我不会. The teacher asked how they did.和The teacher asked who broke the windows哪个句子对. The teacher asked the students to go back__they had been after they wrote sth.on the blackboard.A.in which Bthere.C.where D.the place为什么不选D而是C呢?可否再有例句进行比照出区别的? 大学概率论 互不相容.000000000000000000000两事件 概率论中的互不相容是指? 初二数学下册△ABC中,∠B=60°,∠C=45°,AB=4√3,求BC的长如题怎么求得AD和BD的！只知道一边啊！ 在△ABC中,∠A：∠B：∠C=1:2:3,若AB=a,则BC=_______ they asked who the man was that was walking the dog.为什么有两个was?为什么有that 分解因式：X的三次方减x等于多少 分解因式 x三次方减x等于什么 正确形式填空A.where is she from?B.is she a student?C.who is the girl?D.where is it?E.is her home near ottawa?A.Hi please look at the photo it's my new photoB.oh it's os beautiful _____A.it is in canadaB.great!_____A.she is my good friend her na But the waiter was so kind that he did e( ) the man asked him without getting a( ) 根据正确形式填空