Предмет: Математика, автор: zmazikenova

Градусная мера угла ABC равна 80°. Лучи BD и BЕ, проведены из вершины B, образуют углы ZABD = 30° и ZABE = 40°. Как из лучей, BD или BE, лежит на оси симметрии угла ABC? пж помогите срочно надо

Ответы

Автор ответа: Anil09

Ответ:

<АBE=<ABD+<DBE

<ABE=30+40=70(град)

<EBC=80-40=40(град).

<ABE=<EBC=40град.- 1/2 <ABC

Ответ луч BE - ось симметрии <ABC

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: valahhh

34) Do you see the man over there? I’m sure he ...to take this bus.

a) is planning b) plans

c) planned d) would plan

35) At three o’clock this morning, Betty ...

a) studied b) was studying

c) had studied d) has been studying

36) Hello, Steve. What... in this part of New York?

a) do you do b) are you doing

c) have you done d) had you done

37) Tom ...dinner when his friend called,

a) has eaten b) ate

c) was eating d) would have eaten

38) Jane and Eugene ...along a country road when they saw a deer over there.

a) were driving b) drove

c) had driven d) have driven

39) Kate met her husband while he ...in the bank,

a) work b) works

c) has worked d) was working

40) My mother ...in the same house since 1996 and is going to live there.

a) has lived b) lived

c) was living d) is living

41) We ...our compositions yet.

a) had written b) haven`t written

c) wrote d) write

42) Mr. Black ...in the bank for thirty years and he is not planning to retire yet.

a) worked b) has worked

c) works d) is working

43) After Lilly ...her clothes, she began to study,

a) had washed b) washed

c) was washing d) washes

1 год назад

Предмет: Английский язык, автор: Superfatality

Помогите пожалуйста с переводом текста
British University
Britain‘s universities, except for the University of Buckingham, are financed by the State. One particularity of universities in UK is that most students choose to attend institutions far away from their hometowns. There are four main types of British Universities: Ancient Universities, Red Brick Universities, New Universities, Open University. Ancient Universities in the United Kingdom: University of Oxford — founded before 1167, University of Cambridge — founded 1209.
Red Brick Universities: University of Birmingham, University of Bristol, University of Leeds, University of Liverpool, University of Manchester — named after the buildings they were housed in which were usually built with red brick — were founded in the industrial parts of the cities during the Victorian era (1837—1901) and before the Second World War. Red Brick Universities concentrated on teaching predominantly «practical subjects» often linked to engineering. Two types of universities are subsumed under the term «New Universities». First of all the academic institutions founded in the 1960s after the Robins Report. Besides recommending immediate expansion of universities, the Report also suggested elevating Colleges of Advanced Technology to university status. Some New Universities: Aston University, University of Bath, University of Bradford. The Open University is Britain‘s single distance-learning institution. In 2010 a total of 180,000 students, most of them based in the UK, were enrolled, which made it the largest institution of higher education in the UK by student numbers. The Open University was rated top university in England and Wales for student satisfaction in 2010 and the Quality Assurance Agency for Higher Education rated teaching at the Open University as excellent that same year.

1 год назад

Предмет: Русский язык, автор: Regina200703

звук,ветер,дыхание,берег.Во всех этих словосочетаниях пропущены прилагательные различающиеся только приставками. Восстоновив общую часть всех прилагательных,опредилите,каков правильный порядок приставок