请在两小时内回答,OK?两碟相同规格的饭碗整齐的叠放在桌上,请根据以下数据,5个碗,10.5厘米高;7个碗,15厘米高1

hmilyyxlgs2022-10-04 11:39:547条回答

请在两小时内回答,OK?
两碟相同规格的饭碗整齐的叠放在桌上,请根据以下数据,
5个碗,10.5厘米高;7个碗,15厘米高
1.求整齐摆放在桌上的碗的高度y与碗的数量x之间的一次函数解析式
2.把这两碟碗整齐的摆成一樏时,碗的高度是多少

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dkkd6894 共回答了19个问题 | 采纳率68.4%
1.
设重叠使高度增加为A
单个碗摆放高度为H
H + 4A =10.5
H + 6A = 15
解得 A = 2.25
H = 1.5
Y = 1.5 +(X-1)*2.25
2.
代入 X =12
得Y = 26.25
PS:单个碗高度 比重叠增加高度还少
好象数据有问题呢.
解答仅供参考 希望更强的人来说说
1年前
范俊伟 共回答了18个问题 | 采纳率
先设此一次函数解析式为y=kx+b
将x=5,y=10.5 , x=7,y=15 代入此解析式
解出此二元一次方程组
将x=12代入解出的一次函数
即可求出碗的高度
1年前
business3133 共回答了15个问题 | 采纳率
算不出了= =
1年前
ΒīлУíлg 共回答了32个问题 | 采纳率
这个题错了,没有答案
1年前
xx都有人叫 共回答了279个问题 | 采纳率
第一个碗不一样,以后是一样的
y=a+b(x-1)
则有10.5=a+b*4
15=a+b*6
解得a=1.5,b=2.25
解析式为y=1.5+2.25(x-1)
这碗有点问题,第一个碗咋还低啊?
一摞时为10.5+2.25*7=26.25
或15+2.25*5=26.25厘米高
1年前
鹧鸪村人 共回答了24个问题 | 采纳率
一次函数解析式y=kx+b
5个碗,10.5厘米高;7个碗,15厘米高求得k=2.25,b=-0.75
y=2.25x-0.75
x=5+7=12,y=2.25*12-0.75=26.25
1年前
sdqx 共回答了37个问题 | 采纳率
1.设函数解析式为y=kx+b(k不等于0)
代入(5,10.5)(7,15)得
10.5=5k+b
15=7k+b
解得k=2.25,b=-0.75
所以函数解析式为y=2.25x-0.75
2.当x=5+7=12时,y=2.25*12-0.75=26.25
所以碗的高度是26.25cm
1年前

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I'm sorry to hear that.
I'll go with you.
Don't worry.
Will she help me with my lessons?
must have been在主句是一般过去式的宾语从句中变为must had been吗 ?两小时内给出答案
你我相依1年前11
chris911112 共回答了17个问题 | 采纳率94.1%
很乐意为你解答这个问题!
首先要清楚must,can,should ,may,might 等等情态动词后面动词一定要用原型,也就是说must无论是做“猜测”还是“必须”的意思,后面一定是跟动词原形的.也就是说must have been是正确的说法.而你所提到的must had been是不存在的.我明白你是为了强调是过去的时态,但是在语法中must have been 就可以表示在过去时态下的意义.
例如:I thought he must have been at home last night.就表示:我认为他昨晚一定在家.
.
一只船发现漏水时,已经进了一些水,水均匀进入船内.如果12人淘水,3小时淘完;如果8人淘水,5小时淘完,如果要在两小时内
一只船发现漏水时,已经进了一些水,水均匀进入船内.如果12人淘水,3小时淘完;如果8人淘水,5小时淘完,如果要在两小时内淘完,要安排多少人淘完?
Mocuibao1年前4
完子 共回答了18个问题 | 采纳率94.4%
牛吃草问题
12×3=36(个)
8×5=40(个)
(40-36)÷(5-3)=2(人)
36-2×3=30(个)
30÷2=15(人)
15+2=17(人)
有五桶啤酒,分别有5升、7升、8升、10升、16升,两小时内卖掉了4桶,且第二小时卖出的是第一小时的2倍,剩
有五桶啤酒,分别有5升、7升、8升、10升、16升,两小时内卖掉了4桶,且第二小时卖出的是第一小时的2倍,剩
的一桶是多少?
最好有算式
天秤nn1年前1
Kinki_iknik 共回答了22个问题 | 采纳率90.9%
第一小时候卖了桶10升.
第二小时候卖了5.7.8升.
剩下16升.
(5+7+8)/10=2
用数学语言准确简洁的定义下图的阴影部分.两小时内要答案!)
阿弥陀佛538531年前1
随风舞天下 共回答了18个问题 | 采纳率83.3%
直角坐标系下:
D = {(x,y) | (x^2+y^2)≤1 ,|x| ≤ y } ∪ {(x,y) | (x^2+y^2)≤4 ,y ≤ -|x| }
极坐标系下:
D = {(r,θ) | r≤1 ,π/4≤θ≤3π/4 } ∪ {(r,θ) | r≤2 ,5π/4≤θ≤7π/4 }
两小时内不能吃东西用英语怎么说?
alex65171年前11
小林15 共回答了29个问题 | 采纳率93.1%
You can't eat anything within the next two hours.
天上~
用不但而且写个关心同学的句子用不但而且写个句子两小时内要答案
wz801001年前1
psyliu1005 共回答了21个问题 | 采纳率95.2%
你不但要好好学习,还应该注意身体.
关于小草的人生感悟!最好在两小时内!不能太多400字左右
秋风清清1年前2
rj070318 共回答了15个问题 | 采纳率73.3%
草,虽然平凡、渺小,但却有坚韧不拔的生命力;虽然不美丽,但却具有极其旺盛的生命力;这一切都是对生命的渴望而得来的力量!草,不管闪电雷击,不管狂风骤雨,不管严寒酷暑,它都毫不畏惧.这一切都是信念的力量,小草渴望生命,渴望生存,于是又站了起来!
我漫步在小路上,看着路旁那一棵棵嫩绿葱郁的小草,陷入了沉思……
也许,有很多人都把小草当成是弱小、无能的象征,认为它们那矮小的身躯经不起一点儿风雨.但,我却不这么认为,因为在我眼里的小草,是那样的顽强,那样的富有生机,而最重要的一点,是它们本身具有的生命力和精神!
一到春天,小草们就睁开朦胧的双眼,争先恐后地破土而出,与人们一同分享春姑娘所带来的喜悦与温暖.它们散满大地,为这块抚养它们的“母土”铺上了绿地毯……这千千万万的小草组合起来,才让人们看到了生命的伟大.
当然,小草的可敬之处不单单是在这里,它们身上还闪耀着一个亮点——顽强不屈的精神.小草虽然没有参天大树那样的高大挺拔,也没有花朵那样的鲜红美丽,但是,它们的精神足以盖过这一切,足以让人们重新去认识并惊叹它们.
暴风雨里,高大挺拔的大树被连根拔起,五颜六色的花朵已花残叶败,而小草呢,却以一种比物质的力量更加有力的力量赢得了胜利……等到暴风雨过后,花树都变了样,只有小草依然昂首挺胸地站在那儿,享受着雨后的阳光……正因为此,它们才对得起大诗人的一句“野火烧不尽,春风吹又生”.
我想:在漫长的人生旅途中,人人都会遇到崎岖与坎坷,只要我们具有小草的精神,绝望之云终会驱散,希望之花将会常开.我永远不会忘记那一丛新生的小草,更不会忘记妈妈满含期望的笑脸![ ①小林]
再次跪求一篇外贸函电、!急死人了!两小时内完成!
再次跪求一篇外贸函电、!急死人了!两小时内完成!
2.x05Suppose you are the buyer ,when you received an offer from the seller,you found the price was higher than you had expected.Then write a letter and try your best to persuade the seller to lower the price.(150words)这篇就是还盘
en_route1年前1
后天少爷 共回答了19个问题 | 采纳率89.5%
Dear,
Thank you for your letter.
We are very interested in your products,but i have to say that the price you give me was too expensive than i can accept.
To be honest,i had contact with the other seller,and their price is much better than yours.You know we often receive many letters from the sellers,and everyone of them said they can provide their products with good quality and competitive price.But what we want is a seller who can establish business relations with us and become our regular seller,and get a win-win situation.I hope you can give me your best price,if not that will make no sense.
Your early reply is appreciated.
Sincerely,
Your name
note:just for your reference.
急!求初三一道数学题 两小时内要解答
急!求初三一道数学题 两小时内要解答
如图(图上的大致内容是:A在X轴负半轴,B在X轴正半轴,C在Y轴正半轴,对称轴在Y轴左侧)
二次函数y=ax2+bx+c的图像于X轴交与A,B两点,于Y轴交与C点,如果OB=OC=1/2 OA,那么b的值是
nc19701年前4
ch830626 共回答了19个问题 | 采纳率94.7%
设OB=OC=m,OA=2m
点A(-2m,0)
点B(m,0)
点C(0,m)
带入得
am2+bm+m=0 ①
4am2-2bm+m=0 ②
②-4×①=-6bm-3m=0
约一下
2bm+m=0
所以b=-1/2
一停车场规定两小时内收五元停车费,超过的部分按每小时3.5元收取.刘阿姨开车离开时交了15.5元的停车费,他在这个停车场
一停车场规定两小时内收五元停车费,超过的部分按每小时3.5元收取.刘阿姨开车离开时交了15.5元的停车费,他在这个停车场停车多长时间?
4020280721年前1
wangziyao11 共回答了21个问题 | 采纳率81%
15.5减5等于10.5元
是 两小时内,还是 两小时 后?
是 两小时内,还是 两小时 后?
You have to finish your homework in 2 hours

这句话,应该是【 两小时内,】还是 【 两小时 后?】

谢谢
vbft5461年前3
hgj3511 共回答了13个问题 | 采纳率84.6%
是两个小时内.in 表示在.内.
你必须在两个小时内做完你的家庭作业.
求l两篇英语作文 急 两小时内(1)the most interesting piece of news in 2010
求l两篇英语作文 急 两小时内(1)the most interesting piece of news in 2010
求l两篇英语作文 急 两小时内(1)the most interesting piece of news in 2010 (2)my favorite degital device
deardcp1年前0
共回答了个问题 | 采纳率
英语翻译中文意思是“这不简单,但我们只能在两小时内开车回家"还是”开车回到家?
adj61年前10
我与深圳无缘吗 共回答了14个问题 | 采纳率92.9%
尽管不是很容易做到,我们还是在两个小时内开车回到了家 (没有只能的意思,就是已经这么做到了)
希望对你有帮助哦O(∩_∩)O~
英语翻译:你两小时内不准吃任何东西
vicshing1年前5
流行剑客 共回答了19个问题 | 采纳率94.7%
You can't eat anything in two hours
扩句:同学们做作业.请在两小时内解决!
锦衾寒1年前1
fanzh2002 共回答了17个问题 | 采纳率94.1%
2年级一班的同学们在没有老师督促的情况下正专心致致地在宽敞明亮的自习室做作业.
初二科学题目!急!很急!两小时内答复!
初二科学题目!急!很急!两小时内答复!
1、一个重为G的实心金属球,挂在弹簧秤下,当球的一半浸入某种液体中时,弹簧秤的示数是3G/4,则该金属球的密度与这液体密度的比是________
2、一个质量是50克的空心铁球,恰好能悬浮在水中,则铁球所受浮力为______牛,空心铁球的总体积是______cm³,其中空心部分体积是_____
lll501年前1
夏候敦 共回答了21个问题 | 采纳率100%
1.为了打得方便,设浮力F,密度为p.F=G/4
F p液*V/2*g
- = ----------
G p球*V*g
F/G=1:4
所以
p球:p液=2:1
2.因为悬浮
所以F=G=0.5N
球的平均P=水的密度
V=M/P=50cm3
设空心体积为V2
P铁(50-V2)=50g
忘记铁的密度了,自己摁计算器
不懂再问
两小时内求解!高一数学题一道!已知函数f(x)在R上有定义,对于任意x,y∈R都有f(x)+f(y)=f(x+y),同时
两小时内求解!高一数学题一道!
已知函数f(x)在R上有定义,对于任意x,y∈R都有f(x)+f(y)=f(x+y),同时对任意的a,b∈R,a+b≠0时有f(a)+f(b)/a+b<0
① 证明f(x)为奇函数 ②判断函数的单调性,并给予证明
③若对于任意的x∈R,不等式f(2-2cosx)+f(sin^2 x-m)<0恒成立,求实数m的取值范围
葵紫1年前3
风铃小虎 共回答了19个问题 | 采纳率94.7%
①f(0)+f(0)=f(0),f(0)=0
f(x)+f(-x)=f[x+(-x)]=f(0)=0,f(-x)=-f(x),f(x)是奇函数.
②设x1f(x2).
所以f(x)单调递减.
③f(2-2cosx)+f(sin^2 x-m)
英文回答如何开展研究!两小时内有效
英文回答如何开展研究!两小时内有效
英文试题啊
you would approach your research interests if you are coming to xxx.
我的回答
关于这个问题,之前我没有考虑多少,我想,我可以将我目前所做的的研究继续下去,或者,在您的指导下从事其他类似的研究
那个实在不怎么样啊,
非常爱1年前1
罗志鹏 共回答了18个问题 | 采纳率94.4%
I did not think much about this question before.I think I can go on with my present research,or do some similar research under your direction,
出生后两小时内的英语怎么说
hbczw1年前3
yewu1314 共回答了20个问题 | 采纳率90%
within two hours after born
求英语作文一篇选择求英语作文一篇,以"为何选择单身"为题,80到100字.两小时内给出.通顺者再加100分.
rose44201年前3
sgxfsn 共回答了15个问题 | 采纳率86.7%
Nowadays,more and more people prefer to remain single,no matter it is a man or a lady.Perhaps,it is just because of the social development.People would not like to have much more responsibility on themselves.In another word,it is ,perhaps,due to the social pressure.People are afraid of marriage and children-raising.Mainly because it is not easy for people to find an ideal job,and to earn enough money to support the family.Meanwhile,some people are afraid of failure,especially the failure in marriage.Everybody knows that the attitude towards marriage now is changing.It is much easier for people to make new friends with the development of the modern science,such as,mobile phone and internet.Therefore,it is much easier for people to get devoice.
快点!急!帮翻译下!要在两小时内给我答复!是数学题
快点!急!帮翻译下!要在两小时内给我答复!是数学题
your rectangular yard is twice as it is wide . you fenced in the yard using 240 feet of fencing . you want to fertilize your yard . each bag of fertilizer covers 2000 square feet . how many bags should you buy?justify your answer.
..............
pizza包包1年前2
21century 共回答了20个问题 | 采纳率90%
你矩形的后院(的长)是宽的两倍,你把后院用240英尺的栅栏围了起来.你想给你的后院施肥.每袋肥料可以覆盖2000平方英尺.你需要买多少代肥料.解释你的答案
读书乐作文,没有满意的我自己写.【两小时内】
读书乐作文,没有满意的我自己写.【两小时内】
就是读后感!要鸟奴的.
野山雀1年前1
woh519 共回答了25个问题 | 采纳率100%
寂寞时,不打游戏,不看电影,沉浸在知识的海洋里,书香四溢.
郁闷时,不发牢骚,不碰烟酒,飞翔在神奇的殿堂里,妙笔生花.
吮吸着它,消化着它,升华着我.
捧着它,闻着它,看着它,望着它,凝结着智慧的结晶,滋润着学子的心灵.
它无处不在,一时躺在纸上,一时躲在网里,一时隐在万物中,时隐时现,欲露还羞.
不管你在哪,我都能感觉到你对我的注目.
寻找着你,追逐着你,呼唤着你,一路劈风斩浪,百折不回.
深情的拥抱着你,你却说:“光拥有是不够的,关键是能用出来,否则,你就是个书呆子.”
a,b,c均为绝对值小于1的实数 求证ab+bc+ac大于负1 两小时内解答 加 50 分
a,b,c均为绝对值小于1的实数 求证ab+bc+ac大于负1 两小时内解答 加 50 分
两小时内解答 加 50 分
z54131211年前1
bringitonbringit 共回答了10个问题 | 采纳率80%
|a|-1
所以
ab+bc+ac
=f(a)>{f(-1),f(1)}min>-1