permutation
How many diferent two-digit numbers can be formed using the digits in the set (1, 2, 3, 4, 5}?
25
0!
1
С(8,3)
56
Когда черной кошке лучше всего пробраться в дом?
Когда дверь открыта
Kolledjdegi tarbieshiler sany?
Apkeler: 16
Agalar:12
In how many ways can a president and a secretary be chosen from a group of 4 people if anyone can hold either position?
12
Write 24•23•2•21•20•19 using factorial notation.
24!/18!
C(6,2)+C(8,3)
71
Чем оканчиваются день и ночь?
Мягким знаком
Aidyn agaiga deingi bolgan direktordyn esimi?
Alisher
How many of the four-digit numbers formed from the digits of the number 12345 without repetition do not begin with the digit 2?
P(5,4)-P(4,3)=96
Two teachers and 5 students wil form a row to have their photos taken. In how many different ways can they be arranged fi the teachers must be at the ends of the row?
240
There are 8 fruit pieces of diferent kinds including an apple on a tray. How many selections of 4 pieces of fruit can we make if we have to include the apple?
İf we have ot include the apple, we need to select three pieces of fruit from the seven remaining: C(7, 3) = 35.
Человек научился у пауков строить подвесные мосты, у кошек перенял диафрагму в фотоаппарате и светоотражающие дорожные знаки. А какое изобретение появилось благодаря змеям?
Шприц
Mamandygy english teacher - tarbieshiler kimder ?
Akmaral apke, Nurbibi apke, Kamila apke, Bekzat aga, Daniyal aga,
In how many different ways can 2 parents and 3 children be seated in a car if one of the parents must be in the driver's seat and the children sit in
2! • 3! = 12
87 дәрежесінің соңғы цифры қандай?
2
In how many different ways can one novel, one biography and one poetry book be chosen from 3 novels, 4 biographies and 5 poetry books?
60
Жители штата Канзас очень любят русские орешки. Что это такое, если известно, что у нас их можно встретить на любом рынке?
Семечки
İn how many ways can 3 Turkish, 5 Kyrgyz and 4 Turkmen diplomats be seated around a circular table if diplomats from the same country must sit next to each other?
(3 - 1)! • 3! • 51 • 41 = 2 • 6 • 120 • 24 = 5760
Какое блюдо придумал в 17 веке Марко Арони?
Макароны
In a group of 10 people, everybody shakes hands with everybody else. How many handshakes are there?
45
В 1825 году улицы Филадельфии очищались от мусора домашними животными. Какими?
Свиньями
Kolledjde qai jyldan bastap qyzdar da oqi bastady?
1997