求大神给个网站你懂的解答

求大神解答_百度知道
求大神解答
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提问者采纳
5t&#178;-5/16=6t/2BQ(5-2t)/5(t-5/=-3/+15/+15/2CDt/5×4=6t/16=-3/4)&#178;2t+25/3S△CPDS△CPD=1/5(t-5/5×4=1/16)+15/5-3/2×3×t/5×(1&#47.BC=4S△PBQ=1/16(2)若S△PBQ=1/16当t=5/4)&#178;3)-6t&#178;2t-3/5×3=3&#47AB=3;+11t=0△=11&#178;-4×(-6)×0=121>0故此时成立则t=11/5(t&#178;4时之最大为15&#47
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其他1条回答
即为高;5;5;5。(2)过P做DC的垂线距离为y,所以S△CPD=12t&#47,列比例;2t=4&#47,BQ=t,y=8t&#47:x为过点P向BC做垂线的距离;5;5解得x=3*(5-2t)&#47,三角形BPQ面积=BQ*x/10;(5-2t)=3&#47。x&#47,y/2,根据t的取值范围来求(1)PD=2t;将这个式子作为二次函数求最大值最小值,然后根据要求列等式,BP=5-2t,S=t*(5-2t)*3&#47,求出t值看是否在规定范围内
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出门在外也不愁求大神解答_百度知道
提问者采纳
will flyare playinggoescould
英语考试帮帮忙吧&#128521;
太模糊了近点拍啊
16ABCABCACAC
就是上面的那些图片
帮帮忙&#128513;
做完了啊,还有那个提?
没选项怎么做?
我拍清楚点
那个题没做你说啊
完型填空题
我上面没写么?
就是这个题目勒
Who is that speakingWho are youWhere do we meet
提问者评价
太给力了,你的回答完美地解决了我的问题,非常感谢!
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出门在外也不愁求大神解答~~~~~_百度知道
求大神解答~~~~~
1、Would you please show me the way_____up to the temple in the mountain?A. led
D leads2、I got out,went quickly to his side of the car,opened the door,and started to learn forward with one hand_____.A to reach out
B reached out
C reaching out
D to be reached out3、The new engine___right
now weill be used to be fixed in the new type of airplane soon.A to br experimented on
B being experimented on
C having been experimented on
D experimented on4、The fishers spent five years turning their 40-metre-high castle into a beautiful home weith six floors,____three architectural prizes.A to win
D to have won5、Melted rock and other materials poured out of the opening of the volcano,_____every thing in a path 15 miles long.A
just to damage
B so as to damage
C having damaged
D damaging6、I think if I want to wholeheartedly trust myself to keep my school life running smoothly,I&#39;II have to give up___computer___for the examination.A to prepare
B preparing
C to prepare
D preparing7、We&#39;re conducting a nationwide survery of people&#39;s reading habits.Do you have five minutes___a few questions?A answering
B to answer
C to have answered
D. having answered8、The elevated roads are flooded with large outdoo订法斥盒俪谷筹贪船楷r signboards of ads,which are intended___by passing car drivers.A to read
B to be reading
C to have read
D to be read
提问者采纳
1、C2、C3、B4、A5、C6、C7、B8、D
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出门在外也不愁求大神解答_百度知道
求大神解答
学校买来4种图书,甲种图书是其他3种书的一半,乙种书是其他三种的三分之一,丙图书是其他三种书的四分之一,丁种书有91本,那么四种书共多少本?有两块试验地,一块种菜一块种麦子。已知菜地的一半和麦地的三分之一是13平方米,麦地的一半和菜地的三分之一是12平方米,求两块各多少平方米求过程,最好算术方法,方程只设一个数的
提问者采纳
(1)甲图书是其他书的一半,所以是整个图书总数的1/3乙图书是其他书的1/3,所以是整个图书总数的1/4丙图书是其他书的1/4,所以是整个图书总数的1/5因此丁占图书总数的:1-1/3-1/4-1/5=13/60因此图书总数为:91÷13/60=420本(2)菜地的一半和麦地的1/3是13平方米,乘以2则菜地总面积和麦地面积的2/3是26平方米同样麦地总面积和菜地面积的2/3是24平方米可见麦地面积的1/3比菜地面积的1/3少2平方米因此麦地面积比菜地面积少6平方米菜地总面积的与麦地面积的2/3比菜地总面积与菜地面积的2/3少4平方米即菜地面积的1+2/3为:26+4=30平方米所畅甫扳晃殖浩帮彤爆廓以菜地面积为:30÷(1+2/3)=18平方米麦地面积为18-6=12平方米
提问者评价
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