-
найти длину сторон равнобедренного треугольника если боковая сторона на 15 см длиннее основания а периметр равен 45см
-
Предмет:
Математика -
Автор:
tucker77 - 5 лет назад
-
Ответы 1
-
боковая сторона = х+15основание = хР=х+2(х+15)х+2х+30=453х=15х=5смответ: основание =5см боковые стороны по 20см
-
Автор:
shady - 5 лет назад
-
0
-
-
Добавить свой ответ
Еще вопросы
-
Ex. 133. TEST 1. Choose the correct answer.
1. “Have you ever been to France?” “Yes, I _____ there last
August.”
a) had been b) went c) have been d) were
2. It’s a small town in the south _____ England.
a) – b) from c) to d) of
3. Couldn’t you go a little faster? I’m _____ a hurry.
a) on b) in c) at d) of
4. I usually wear skirts, but today I _____ trousers.
a) wears b) wear c) wearing d) am wearing
5. It’s Mr. Smith, _____?
a) isn’t it b) isn’t he c) is it d) is not it
6. One of my neighbours has _____ me to tea.
a) invited b) pleased c) suggested d) welcomed
7. I’m _____ in the news.
a) exciting b) interesting c) interested d) interest
8. Can we _____ at your house and go to the party together?
a) come b) see c) find d) meet
9. How can I _____ to the post-office?
a) reach b) get c) find d) arrive
10. “Must I take my umbrella?” “No, you _____ . It’s not going to
rain.”
a) mustn’t b) needn’t c) have to d) don’t
11. I think John _____ translate this document.
a) have to b) will have c) has d) will have to
12. I was a bit worried because I thought I might _____ my train.
a) be late b) not reach c) lose d) miss
13. I _____ breakfast when the phone rang.
a) had b) have c) am having d) was having
14. This car is more _____ than that one.
a) fast b) faster c) modern d) fastest
15. She hasn’t written to me _____ we met last time.
a) since b) ago c) for d) before
16. This question is _____ difficult for me.
a) too b) to c) enough d) such
17. This record-shop _____ be a book-shop a few years ago.
a) use b) used to c) used d) had
18. She doesn’t like _____ television.
a) looking b) watch c) watching d) see
19. He arrived _____ you were asleep.
a) during b) for c) while d) until
20. Mr. Smith woke up in the middle of the night. He could hear _
____ in his garden.
a) anybody b) everywhere c) someone d) anything
-
Предмет:
Английский язык -
Автор:
briana - 5 лет назад
-
Ответов:
1 -
Смотреть
-
-
Подготовьте рассказ об одном из героев древнегреческой мифологии Включите в этот рассказ описание портрета героя
-
Предмет:
Литература -
Автор:
demetrius - 5 лет назад
-
Ответов:
2 -
Смотреть
-
-
3 -2
7 X 7. Как решать народ плиз подскажите-
Предмет:
Алгебра -
Автор:
jayleeenglish - 5 лет назад
-
Ответов:
0 -
Смотреть
-
-
74-8z=2
Плис помогите
-
Предмет:
Математика -
Автор:
pandamclean - 5 лет назад
-
Ответов:
1 -
Смотреть
-
Топ пользователей
-
Fedoseewa27
35934 -
Askold
2792 -
Pikachu
2228 -
hobbesbowers
2116 -
kaylynnbarron676
1818 -
女fei
1240 -
yulia-kaplina
1158 -
Poinntt
946 -
Bars
930 -
Queenmagic18
770
How much to ban the user?
1 hour
1 day
100 years