用22,23,24,25,26,27,28,29,21这9个数填入圆圈内和为75
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![用22,23,24,25,26,27,28,29,21这9个数填入圆圈内和为75](/uploads/image/f/6245264-56-4.jpg?t=%E7%94%A822%2C23%2C24%2C25%2C26%2C27%2C28%2C29%2C21%E8%BF%999%E4%B8%AA%E6%95%B0%E5%A1%AB%E5%85%A5%E5%9C%86%E5%9C%88%E5%86%85%E5%92%8C%E4%B8%BA75)
21:twenty-one22:twenty-two23:twenty-three24:twenty-four25:twenty-five26:twenty-six27:twenty-seven28:
ACCBACDBBD
21:Twenty-first22:Twenty-second23:Twenty-third24:Twenty-fourth25:Twenty-fifth26:Twenty-sixth27:Twent
设S=22+23+24+25+26+27+28+29,则2S=23+24+25+26+27+28+29+210,∴2S-S=210-22,即S=210-4,∴原式=2-(210-4)+210=6.
=(21+100)+(22+99)+……+(60+61)=121+121+……+121=121×40=4840
twentyonetwentytwotwentythreetwentyfourtwentyfivetwentysix
如果组距为2,那么应该分成(5)组,24.26.5这一组的频数为(8),频率是(0.4)
解题思路:quiet安静;bequiet保持安静;句意:当你爸爸在睡觉时,你必须保持安静。解题过程:30.Bquiet安静;bequiet保持安静;句意:当你爸爸在睡觉时,你必须保持安静。31.Cyo
twentyone,twentytwo,twentythree.以此推类至twentynine
您好!21+22+23+24+25+26+.100=(21+100)×(100-21+1)÷2=121×80÷2=4840
最大值与最小值的差是:30-21=9,则组数是:9÷2=4.5,则应分成5组;第一组是:21到23,第二组是:23到25,第三组是:25到27(每组包括分组的前边的数,不包括分组的最后一个数字),则在
B>>CDD再答:-8.-8六分之一再答:-18再答:A再问:26,27,28题咋不说再答:后面的就是
21--25:BACAA26--30:BCBCC
11704551300188130189623941876516422184到不了.644/7=92所以火车每小时走92公里,92×11=1012<1072所以到不了再问:22、列公式,我要把好评给你
22-----28caddc
再答:.....是后面继续照写即可再答:记得采纳
-73再答:噢。。是英语题啊。。再答:噢。。是英语题啊。。再答:25C再答:24A再答:23C再答:22B再答:21A
真的看不清
whencould,whatdo,whycouldn'tgo,shouldcare,whois再问:那个你还有时间吗,我还有题不会再答:多吗再问:不多就一道大题再答:好啊再问: 再问:选择再