Предмет: Алгебра, автор: jonyjonyjonygu

Помогите решить 9номер с решением плиз!

Приложения:

Ответы

Автор ответа: Юленька194

0

$2*sin\frac{\pi }{2} +3*tg\frac{\pi }{4} =2*1+3*1=2+3=5$

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: Ubuvup04

Как перевод на русский write negative sentences . Use full forms

2 года назад

Предмет: Английский язык, автор: Аноним

помогите с тестом,пожалуйста!!!
1) I was working____the Internet.*
a. On
b. In
2) My baby brother is getting smarter________.*
a. Day after day
b. Day by day
3) The employees ___________that the strategy of the company will work.*
a. Believe
b. Belief

4) Arguably, Rome is _____beautiful than Paris.
a. More
b. Much
c. Rather
5) Lukas’s package________ at 3:30 p.m. yesterday.*
a. delivered
b. has been delivered
c. was delivered
6) You can get to London _____.*
a. On train
b. With train
c. By train

7) Harry _____ his father’s car when the accident happened.
a. was driving
b. drove
c. has been driving
8) Did you hear what happened to Kate? She _____.*
a. is arrested
b. arrested
c. has been arrested
9) I like your hair. Where _____?*
a. cut you it
b. did you have it cut
c. do you cut it

10. A penny saved is a penny earned means
a. It is as useful to save money that you already have as it is to earn more
b. The more money you save, the more money you earn in the future
c. It is hard to earn money, that it why it is better to save
11. Birds of a feather flock together means
a. A fanciful and unbelievable tale
b. To display one's emotions openly
c. Those of similar tastes congregate in groups
12. Straight from the horse's mouth means*
a. To receive information from someone directly involved
b. To receive information from a person who always lies
c. Rumors or gossips

2 года назад

Предмет: Английский язык, автор: Chikatila5

Помогите пожалуйста. Complete the sentences. Put one verb in the Past Simple and one is the Past Perfect.
a. My friend ..... (give) me a lift because I ..... (miss) the bus.
b. When he ...(finish) his homework, he.... (go) to bed.
c.When I got to school, I ..... (realize) that I.... (forget) my English book.
d.My father took me to Moscow last year. He .... (be) there as a student, so he .... (know) his way around.
e. I. ... (thank) my friend for everything he ..... (do)

2 года назад

Предмет: Математика, автор: маша1532

За 5 ч теплоход прошёл 170 км. За сколько часов он пройдёт 306 км с той же скоростью?

9 лет назад

Предмет: Математика, автор: Лалалупси10

Решите пожалуйста по действиям

9 лет назад