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Куликова2006
Куликова2006
04.06.2022 09:20 •  Математика

Составить диаграмму Эйлера-Венна для множества Z всех таких чисел из отрезка [55, 1828], которые делятся ровно на два из чисел (9, 12, 15, 18) (например, натуральное число 135 делится на 9 и 15, но не делится на 12 и 18, т.е. входит в указанное множество Z, а число 72 не входит). А также выразить мощность множества Z через мощности пересечений A, B, C, D (почти то же самое, что выразить характеристическую функцию искомого множества Z через хар.функции множеств A, B, C, D линейной комбинацией их произведений с решением

👇
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Ответ:
astasevbogdanp08dn2
astasevbogdanp08dn2
04.06.2022

Пошаговое объяснение:

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4,7(20 оценок)
Ответ:
Howcould
Howcould
04.06.2022

Пошаговое объяснение:

9)

(30088-27028):30+29*31=1001

1)

_30088

27028

3060

2)

_3060 |__30

30 |102

_60

60

0

3)

29*31=20*31+9*31=620+279=899

4)

102+899=1001

10) магазины

1 магазин

1)4*190=760(руб) стоят 4 полотенца

2)760+950=1710 (руб) стоят полотенца и противень

3)5*90=450 (руб) стоят 5 стаканов

4)1710+450=2160 (руб) стоят 5 стаканов 4 полотенца и противень

5)2160+500=2660 (руб) вся покупка первого магазина

2магазин

1)220*4=880 (руб) стоят 4 полотенца

2)880+940=1820 (руб) стоят 4 полотенца и противень

3)5*80=400 (руб) стоят 5 стаканов

4)400+1820=2220(руб) стоят 4 полотенца, противень, 5 стаканов

5)2220+470=2690(руб) вся покупка второго магазина

ответ: 2660 рублей покупка первого магазина. Дешевле.

11) города

Согласно графику, город Пекин 4 по численности населения

4,4(8 оценок)
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