yjsts
04.05.2021 06:06

My name's Anthony Smart. I'm the chief accountant for Xcel Systems. I'm responsible for cash flow, credit control, preparing financial statements, accounting reports and so on. On the whole, I enjoy my work - I've always enjoyed working with numbers. I also like the company culture and the people here at Xcel - it's a very friendly and supportive work environment. One task I don't quite like is chasing money from late payers. That can be rather unpleasant sometimes. Daniel Goldman
My name's Daniel Goldman and I'm the managing director of Xcel Systems. I'm responsible for the day-to-day running of the business including managing projects, organising people's work, dealing with suppliers and important customers. I'm also in charge of developing the company's long-term strategy. What I like most about my work is the responsibility, the challenge and of course the salary. I also really enjoy motivating and inspiring other people to achieve their goals and develop the company. The part I don't really like is the long hours. It's not uncommon for me to spend 12 hours in the office, which doesn't leave me much time for my family. On top of that, my job can get pretty stressful at times, especially when we have problems with our suppliers.
Susan Clarke
My name's Susan Clarke. I work for Xcel Systems as a human resources manager. My responsibilities include recruiting new employees and organising training for company staff. It's also my job to improve the company's working conditions. I find my work very interesting mainly because I enjoy working with people. It's also very satisfying to see employees improve and develop their skills because of initiatives that I have put into practice. What I don't like so much is when I have to deal with a difficult employee - for example, somebody who is habitually late, takes too many days off or doesn't meet deadlines. That can be rather stressful. But luckily, it doesn't happen too often.

Task. complete the sentences from the text
charge enjoy find job most
part quite responsibilities responsible what
I'm 1. for cash flow/credit control/managing projects..
I'm in 2. of developing the company's long-term strategy.
My 3. include recruiting new employees and organising training for company staff..
It's also my 4. to improve the company's working conditions.
On the whole, I 5. my work.
What I like 6. about my work is the responsibility, the challenge and of course the salary.
I 7.my work very interesting.
One task I don't 8. like is chasing money from late payers.
The 9. I don't really like is the long hours.
10.I don't like so much is when I have to deal with a difficult employee.​

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Ответ:
DeaDPooL797
10.04.2023 22:31

Для начала нарисуем произвольную трапецию АВСD и через точку Е проведем прямую EF параллельную основаниям трапеции

Найдем площадь треугольника CEF, которая равна EF*h1/2, затем найдем площадь треугольника DEF, которая также равна EF*h1/2.

Площадь треугольника ЕСD равна сумме площадей этих треугольников

EF*h1/2 + EF*h1/2 = EF*h1

EF - средняя линия трапеции и равна она половине суммы оснований, а именно (а+в)/2;

высота h1 равна половине высоты трапеции, а именно h/2.

Осталось только подставить значения

EF*h1 = (а+в)/2*h/2 = (а+в)*h/4 и сравнить

площадь трапеции формула

Площадь треугольника ЕСD равна половине площади трапеции, что и требовалось доказать.

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Ответ:
Selbrit
03.01.2020 07:31
Периметр ромба равен P = 4a, где а - сторона ромба, отсюда а = P/4 = 148/4 = 37.
Диагонали ромба взаимно перпендикулярны и точкой пересечения делятся пополам. Обозначим половины диагоналей за b и с. Тогда разность половин диагональ равна 1/2•46 = 23. Составим систему, используя теорему Пифагора:
37² = b² + c²
b - c = 23

1369 = (c + 23)² + c²
b = c + 23

1369 = c² + 46c + 529 + c²
b = c + 23

2c² + 46c - 840 = 0
b = c + 23

c² + 23c - 420 = 0
c1 + c2 = -23
c1•c2 = -420

c1 = -35 - не уд. условию
c2 = 12

с = 12
b = 12 + 23

c = 12
b = 35
Значит, половины диагоналей равны 12 и 35 см.
Длина меньшей диагонали равна 1/2•12 см = 24 см.
ответ: 24 см.
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