Предмет: Математика, автор: MissisN

100 балловввввввввв!!!​

Приложения:

Ответы

Автор ответа: Guerrino
1

AO - биссектриса угла A. Значит, BAO=BAC/2 = (90-BCA)/2=40/2=20

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Алгебра, автор: gelyaber0
Допоможіть будь ласка!!

Знайдіть міри центральної тенденції заданої вибірки: 2, 10, 3, 7, 5, 3, 12, 2, 5, 7, 3, 10. якщо можна, додайте будь ласка сам розв'язок..
6 лет назад
Предмет: Геометрия, автор: uUwUu1
Найти косинус и тангенс острого угла, когда известен синус.


1. Найдите косинус и тангенс острого угла, когда известен синус= 0,6

2. Найдите синус и косинус острого угла, когда тангенс = корень из 5
6 лет назад
Предмет: Английский язык, автор: nastyalomak
Final Test Variant I
I. Open the brackets and complete the story:
Form VI
It was a gloomy day. A stormy wind (blow) 1
The Storm
when I (come) 2 afternoon. I said to my mom: "I (unpack) 3 my luggage in a minute and (wait) 4 deck " I (not, pay)5 any attention to the weather and only later on I (notice) 6 two hours to start on the voyage, Mom explained: "We (go) 8 waves (rise) 10 Don't be afraid It (rain) II for 4 hours already, It (get) 12 afraid I (can) 13 (wash) 14
now When we (reach) 9
overboard. It was the worst storm I (see) 15
on board the ship at throe in the
for you aat 2 o'clock on the that it (take) 7
＿ever
the open sea, huge better soon. " I was
II. Insert to where necessary:
1. John felt somebody … strike him on the shoulder
2. "I will make you … do it!" he cried.
3. My mother wants me … be honest.
4. Are you allowed … play on the computer for hours?
5. I could hear my Dad … sing in the bathroom.
6. Let Tim … go to the cinema with us.
7. I expected Polly … come to my birthday party.
8. Little children are always made … go to bed very carly.
9. Little Liz noticed her brother … climb the pine tree. 10. Did you see Alex … smoke? III. Complete the sentences choosing the right participle:
1. The woman (speaking, spoken) now is our secretary.
2. The (breaking, broken) arm was examined by the doctor.
3. There are many pupils (going, gone) in for sport in our class.
4. Do you like books (writing, written) by Jack London? Alice put a plate of (frying, fried) fish in front of me.
IV. Complete the sentences with the correct form of the words:
1. Her ideas often her friends.
2. People must develop international
3. changes can be dangerous for humans.
4. What is the greatest ＿ in Washington, D.C.?
5. The weather was very hot and
6. Will you support me in the
7. Teachers should … their students.
8. My brother is ＿ ＿ ten years old.
9. A. Lincoln was respected for his ＿ 10.I had a real respect and ＿ for him.
V. Choose the correct words:
1. He ＿ for six hours already.
a) drives
b) has driven
c) has been driving
2. The students ＿ five English books by the end of March.
a) had read
b) read
c) have read
3. Her hair ＿ very beautiful.
a) were
b) are
c) is
4. The people living in this house are unpleasant.
a) such
b) the
c) so
5. I
5. I expect you to look ＿ mygarden while I am away.
b) after
c) for
a) at
6. You should take the rule.
c) after
a) down
b) off
7. When is the time for the plane to take
a) away
b) back
c) off
8. Nuclear weapons must not ＿
a) use
b) be use
c) be used
9. There are 27 amendments ＿ the US Constitution.
c) in
a) at
b) to 10. Tell me this story ＿ ＿brief.
a) in
b) by
c) at
exciting cooperate climate attract SUN argue courage near honest admire
Найти
Перевести

ДАМ 100 БАЛЛОВ ЗА ВСЁ!
6 лет назад
Предмет: Алгебра, автор: Лама11
найдите номер члена равную нулю в арифметической прогресии заданной в видеа50 / а20 =- 1
9 лет назад
Предмет: Математика, автор: AsyaOsim
Помогите с матаном
2cos60°-tg30°
9 лет назад