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partypoison6
partypoison6
29.08.2020 23:03 •  Алгебра

В коробке лежат бусинки, различаются только цветом. Общее их количество 56 шт., из них красных — 20 шт., зелёных — 11 шт., голубых — 17 шт. Кроме того, есть ещё чёрные и белые. Найди минимальное необходимое количество бусин, которое надо достать, чтобы среди них гарантированно оказалось 10 шт. одного цвета.

👇
Ответ:
foton228
foton228
29.08.2020

ответ:35

Объяснение:

В общем, 56-20-17-11=8

8+9+9+9=35

4,7(19 оценок)
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Ответ:
fhctybq123
fhctybq123
29.08.2020
1  yesterday i had  breakfast at the canteen.  2  last summer we went to the black sea.  3  he didn't call  me last week.  4  why did this girl come to  our office yesterday?   5  when did  you buy tickets last time?   6  last june the boys played  football every morning.  7  on sunday my parents  were at the theatre.  8  i didn't take part at the conference last month.  9  he lived in kiev in his childhood.  10  where did  he send his message?   2 трансформируйте предложения в past simplе  1  he often played chess.  2  our classes began at 9 a. m.  3  she  was always busy.  4  what did you do in the evening?   5  my sister didn’t study at school, she worked at the hospital. 6  my friend prefered tea to coffee.  7  i found many stories in this magazine.  8  he was in my room,  wasn't he?   9  why did you always ask so many questions?   10  jasmine seldom visited her grandparents. 3 образуйте отрицательную форму предложений  1  in summer she didn't get up early.  2  mr. white  didn't write a lot of letters yesterday.  3  on friday they weren't at the station.  4  we didn't  enjoy our time in rome.  5  they didn't  watch a football match last weekend.  6  the girl didn't open a box at once.  7  i didn't leave my keys on the table.  8  the engineer didn't go on business trip on monday.  9  my friend didn't want to move to another flat.  10  i didn't find a surprise in the present-box. 4 поставьте вопросы к предложениям.  1  he learned english at school. (where? what language? why? or …? )  where did he learn english? what language did he learn? why did he learn english? did he learn english or french? 2  the train was five hours late. (what? why? )  what was 5 hours late? why was the train five hours late? 3  i was going to stay at my aunt’s in the crimea. (where? who? or …? ) where was i going to stay in the crimea? who was going to stay at the aunt's in the crimea? was i going to stay at my aunt's or in the hotel in the crimea?   4  they stayed in moscow only for two days. (why? where? how long? ) why did they stay in m only for 2 days? where did they stay? how long did they stay in m?   5  i bought a very beautiful dress in this shop last weekend. (where? what? when? ) where did i buy a very beautiful dress last weekend? what did i buy in this shop last weekend? when did i buy this beautiful dress in the shop? 6  they traveled to cyprus by sea. (how? where? or …? ) how did they travel to c? where did they travel to? did they travel to c or ibiza?   7  i didn’t find your telephone number. (what? why? )  what didn't i find? why didn't i find your telephone number? 8  in his childhood he was always a leader among his friends. (what? when? who? )  what was he in his childhood? when was he a leader among his friends? who was always a leader among his friends in his childhood? 9  he caught a cold last month. (what? when? why? ) what did he catch? when did he catch a cold? why did he catch a cold?   10  we did our lessons together. (what? how? ) what did we do together? how did we do our lessons?
4,4(31 оценок)
Ответ:
anastasiya11лет
anastasiya11лет
29.08.2020
N 1
y = - 2x + 3 
1)
х = 3 
y = - 2 * 3 + 3 = - 3 
2) 
5 = - 2x + 3 
2 = - 2x 
x = - 1 

N 2 
y = 5x - 4 
График - прямая линия 
Первая точка для построения ( 0 ; - 4 )
Вторая точка для построения ( 0,8 ; 0 )
Далее соединяешь эти точки линейкой ( это и есть график заданной функции y = 5x - 4 
1) y = 5 - 4 = 1 
На графике отмечаешь точку ( 1 ; 1 ) 
2) 6 = 5х - 4 
5х = 10 
х = 2 
На графике отмечаешь точку ( 2 ; 6 ) 
N 3 
y = 0,2x - 10 
1) x = 0 
y = - 10 
Точка ( 0 ; - 10 )
2) y = 0 
0 = 0,2x - 10 
0,2x = 10 
x = 50 
Точка ( 50 ; 0 )
4,5(92 оценок)
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