5.6x-1.2x=22

相关推荐

• FeS的电离中c(Fe+)*c(s2-)=6.25*10^-18,又知溶液中,[c(H+)]^2*c(S2-)=1*10^-22现将适量的FeS,投入饱和溶液中,要使溶液的c(Fe2+)达到1mol/L,应调节溶液的PH为多少?
• 520除以一个数，商23余14，则除数是（　　）A. 23B. 22C. 21D. 20
• 英语翻译The folks in Arkansas are serious about getting you your money -- if you're entitled to it.Last year,that unclaimed treasure trove of everything from cash to diamonds and guns was valued at $22 million.
• 小明把棱长为4的正方体分割成了29个棱长为整数的小正方体，则其中棱长为1的小正方体有（　　）A. 22个B. 23个C. 24个D. 25个
• 520除以一个数，商23余14，则除数是（　　）A. 23B. 22C. 21D. 20
• 1.圆锥的母线长为L,高为1/2L,则过圆锥顶点的最大截面的面积是（ ）2.用两个平行平面截半径为5的球,所得圆面的周长分别为6π和8π,则这两个截面之间的距离为____3.将一个边长为10的大正方体的表面涂成红色后,再切成边长为1的小正方体,这些小正方体中至少有一面涂成红色的个数是4.长方体的表面积是22.所得棱长的和为24,则对角线长为________5.用一个平行于圆锥底面的平面截这个圆锥,截得的这个圆台上、下底面的半径是1:4.,截去的圆锥的母线长为3cm,求截得的圆台的母线长.
• Section A Directions:阅读Mary和Tim之间对话的下一部分,选择will或to be going to将对话补充完整Tim:Did you do all your job?Mary:Almost.Dave spoke to his dad.21 (We’ll / We’re going to) borrow his van.I’ve booked a hotel.22 (We’ll / We’re going to) stop at the hotel on the way to the gig to collect the keys,because we’ll be very late that night.Tim:What about feeding your cats?Mary:Oh no!I completely forgot!23 (I’ll/I’m going to) ask the neighbor.Tim:Don’t worry.24 (I’ll/I’m go
• 2012广东高考英语语法填空答案疑问17题为什么是would buy而不是had bought；；22题为什么是which而不是who；；24题为什么是if/whether而不是what原文和我做的答案：Mary will ever forget the firsttime she saw him.He suddenly appeared in class one day ,__16wearing_(wear) sun glasses .He walked in as if he __17would buy（had bought?）___(buy) the school,And the word quickly got around that he was from New York City.For some reason he sat besideMary.Mary felt _____18pleased_ (please),because there were many empty seat
• 2011湖北高考英语卷中的两道单选题.虽然没有财富值,22.Giving up my job to go back to full-time education was a big _________,but now I know it was the best decision I ever made.A.project B.commitment C.competition D.ambition这题为什么选B 30.When asked about their opinions about the schoolmaster,many teachers would prefer to see him step aside _______ younger men.A.in terms of B.in need of C.in favor of D.in praise of这题为什么选C
• 某市水价为10吨以内每吨2.5元超过10吨超出部分按每吨3元.上月小明家水费比小林家多22元,每家水费多少某市水价为10吨以内每吨2.5元,超过10吨,超出部分按每吨3元计算.上个月小明家水费比小林家多22元,上个月每家水费多少元?
• 当|x+1|+|x+3|的值最小时,求|2x-1|+|x-3|-|2-x|+5
• 2x²+2(√5-√3)x=4+√15