in+my+absence

芮勇阎2799there+is+an+orange+in+my+bag,怎么改成疑问句并作肯定回答?
郟是习18551155300 ______ 答案是: Is there an orange in your bag ? No ,there isn't ☞ ♧手工翻译☀尊重劳动☀欢迎提问☀感谢采纳♧ ☜

芮勇阎2799已知有向线段PQ的起点P和终点Q的坐标分别为( - 1,1)和(2,2),若直线l:x+my+m=0与PQ的延长线相交,则m的取值范围是______. -
郟是习18551155300 ______[答案] 由题知kPQ= 2−1 2−(−1)= 1 3, 直线x+my+m=0过点M(0,-1). 当m=0时,直线化为x=0,一定与PQ相交,所以m≠0, 当m≠0时,kl=- 1 m,考虑直线l的两个极限位置. (1)l经过Q,即直线l1,则kl1= 2−(−1) 2−0= 3 2; (2)l与PQ平行,即直线l2,则kl...

芮勇阎2799谜语My+first+is+in+the+car.But+not+in+the+bar.请问谜底是什么 -
郟是习18551155300 ______ 是C,CAR和bar都有ar.

芮勇阎2799英语否定句的例子10个? -
郟是习18551155300 ______ 英语否定句的例子10个?否定句分很多种,我就举些例子吧.1.cannot/couldn't或can /could +否定词(not,never,hardly,scarcely)too以及比较级等等.I can't wait to see him.我盼望着能早点见到他.I could not feel better.我感觉再好不过了.You...

芮勇阎2799先阅读材料.然后回答问题:用分组分解法分解多项式mx+nx+my+ny=(mx+nx)+(my+ny).组内公因式分别为x,y.组间公因式为(m+n),最后分解的结果为(m+... -
郟是习18551155300 ______[答案] (1)材料中的多项式也可以这样分 mx+nx+my+ny=(mx+my)+(nx+ny),组内公因式分别为m,n,组间公因式为(x+y),最后分解的结果为(m+n)(x+y). (2)上述两种分组的目的都是提公因式, 例:x2+2x+1-y2 =(x2+2x+1)-y2 =(x+1)2-y2 =(x+1+y)(x+1-y).

芮勇阎2799x=mz - ny,y=nx - lz,z=ly - mx,求证:lx+my+nz=0 -
郟是习18551155300 ______[答案] 直接把XYZ的相等式代入: lx+my+nz =l(mz-ny)+m(nx-lz)+n(ly-mx) =lmz-lny+mnx-mlz+nly-mnx =0

芮勇阎2799There+is+two+parks+and+a+pet+hospital+in+my+city.+哪里错了? -
郟是习18551155300 ______[答案] is 应该改为 are ,就近原则

芮勇阎2799若直线L1:2x+my+1=0与直线L2:y=3x - 1平行,则m= -
郟是习18551155300 ______ 2x+my+1=0与 直线L2:y=3x-1平行,则m= 斜率= -2/m = 3 m = -2/3

芮勇阎2799分解因式,(a - b)(5mx+my - 1) - (b - a)(3my - mx+1) -
郟是习18551155300 ______[答案] (a-b)(5mx+my-1)-(b-a)(3my-mx+1) =(a-b)(5mx+my-1)+(a-b)(3my-mx+1) =(a-b)(5mx+my-1+3my-mx+1) =(a-b)(4mx+4my) =4m(a-b)(x+y) 如果不懂,祝学习愉快!