A set of dominoes (多米诺) consists of rectangular (矩形的) tiles each carrying two nu

游客2024-08-15 39

问题 A set of dominoes (多米诺) consists of rectangular (矩形的) tiles each carrying two numbers from 0 to 6 which represented by patterns of spot. Every possible pairing of numbers occurs just once, including each number with itself.
How many dominoes are there in a set?

选项

答案 28

解析

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A set of dominoes (多米诺) consists of rectangular (矩形的) tiles each carrying two nu

Canyouunderstandthereasoningbehindthesedominoesandfindthemissinglett

—___________carryingthoseshoppingbagsupstairs?—Sure.Ifyoudon’tmind.—No,

Asetofdominoes(多米诺)consistsofrectangular(矩形的)tileseachcarryingtwonu

TheHouseofCommonsconsistsof______MembersofParliament.A、551B、651C、751

TheHouseofCommonsconsistsof______MembersofParliament.A、551B、651C、751D、

TheHouseofCommonsconsistsof______MembersofParliament.A、551B、651C、751D、

TheHouseofCommonsconsistsof______MembersofParliament.A、551B、651C、751D、

TheHouseofCommonsconsistsof______MembersofParliament.A、551B、651C、751D、

Bill:______carryingthosegrocerybagsupstairs?Garcia:Sure.Ifyoudon’tmin

Bill:______carryingthosegrocerybagsupstairs?Garcia:Sure.Ifyoudon’tmin

Itislateatnightandyouarestillawake.Shouldyoutakeasleepingpill

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