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1) what is the official name of great britain? 2) what is the area of the great britain? 3) name the administrative units of great britain. 4) what are their main cities? 5) what is the capital of great britain and where is it situated? 6) what is great britain washed by? 7) what is the population of great britain? 8) what is the highest mount of great britain and where is it situated? 9) describe the flag of united kingdom. 10) what are the symbols of the nations (flags, plants, patron saints, saint’s days)? 11) what is the state holiday in great britain and when is it celebrated? 12) what is the political system of great britain? 13) what houses are there in british parliament? 14) what had happened in 1689? 15) what had happened in 1665 and 1666? 16) what is the capital of england? 17) what administrative divisions of england do you know? 18) what are the boundaries of england? 19) what is the national anthem of england? 20) what is the capital of scotland? 21) what are the boundaries of scotland? 22) what is the national anthem of scotland? 23) what subdivisions of scotland do you know? 24) what are the capitals of wales and northern ireland? 25) what subdivisions of wales and northern ireland do you know? 26) what are the boundaries of wales and northern ireland? 27) what is the national anthem of wales and northern ireland? give detailed answers to the questions! ответить на вопросы.

Алгебра

Ответы

M10M11M12
1.  the official name of great britain  is the united kingdom of great britain and northern ireland.
vnolenev
1/3х = 5                   3х - 1,7 = 2,2 х = 5 : 1/3                 3х = 2,2 + 1,7 х = 5 * 3                   3х = 3,9 х = 15                       х = 3,9 : 3                                 х = 1,3 8у - 13 = 5у - 5           11х - (3х + 12) = 4(2х - 3) 8у - 5у = - 5 + 13       11х - 3х - 12 = 8х - 12 3у = 8                         8х - 8х = - 12 + 12 у = 8 : 3                     0 = 0 - уравнение не имеет смысла у = 2 2/3
buriginast5
30мин=1/2ч 25мин=5/12ч пусть скорость 1-го х км/ч, а скорость 2-го у км/ч, тогда (х+у)*1/2=15км (это выражение означает, что за полчаса, т.е. к моменту встречи, оба велосипедиста в сумме  прошли весь путь от а до б) х+у=30км (x> 0; y> 0) x=30-y (30-y> 0⇒y< 30) по условию 15/у=15/х+5/12 (время потраченное вторым велосипедистом на весь путь равно времени первого велосипедиста + 25 мин) 3/у=3/х+1/12 составим и решим систему уравнений: решим второе уравнение системы: одз: y≠0 ; y≠30 1080-36y-36y-30y+y²=0 y²-102y+1080=0 d=b²-4ac=102²-4*1080=10404-4320=6084=78² не подходит, т.к. y< 30 км/ч скорость второго ответ: скорость 1-го 18км/ч, скорость 2-го 12 км/ч

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1) what is the official name of great britain? 2) what is the area of the great britain? 3) name the administrative units of great britain. 4) what are their main cities? 5) what is the capital of great britain and where is it situated? 6) what is great britain washed by? 7) what is the population of great britain? 8) what is the highest mount of great britain and where is it situated? 9) describe the flag of united kingdom. 10) what are the symbols of the nations (flags, plants, patron saints, saint’s days)? 11) what is the state holiday in great britain and when is it celebrated? 12) what is the political system of great britain? 13) what houses are there in british parliament? 14) what had happened in 1689? 15) what had happened in 1665 and 1666? 16) what is the capital of england? 17) what administrative divisions of england do you know? 18) what are the boundaries of england? 19) what is the national anthem of england? 20) what is the capital of scotland? 21) what are the boundaries of scotland? 22) what is the national anthem of scotland? 23) what subdivisions of scotland do you know? 24) what are the capitals of wales and northern ireland? 25) what subdivisions of wales and northern ireland do you know? 26) what are the boundaries of wales and northern ireland? 27) what is the national anthem of wales and northern ireland? give detailed answers to the questions! ответить на вопросы.
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