СПРОСИ ПРОФИ
👍
0
👎 01

Please answer this question

The product of 13 integer numbers is positive. From this intormation we can
deduce that it is necessarily true that:
a)If (a) all factors are positive.
b) one factor is positive and 12 factors are
negative.
(с) 7 factors are positive and 6 factors are
negative.
(d) there is an odd number of positive
factors (in the product),
(е) at least two factors are negative.
Which answer is correct and why ?
английский язык обучение     #1   28 июн 2017 15:45   Увидели: 26 клиентов, 23 специалиста   Ответить
👍
+4
👎 4
It ought to be clear that if a product of n integer numbers is positive then we can deduce:

1) there is an even number of negative factous in the product;

2) among the factors there is no zero.

Thus (d) is the correct answer (indeed [m]13-2n[/m] is an odd number).

Задайте свой вопрос по английскому языку
профессионалам

Сейчас онлайн 75 репетиторов по английскому
Получите ответ профи быстро и бесплатно

Другие вопросы на эту тему:

👍
0
👎 01

Перепишите следующие предложения   1 ответ

помогите пожалуйста!
перепишите следующие предложения, определите в каждом из них видовременную форму и залог сказуемого.
1.The resources that go into the creation of goods and services are called the factors of production.
2. The price helps us to determine when and where factories will be built.
3. The government has undertaken a number of programs ti increase its income.
4. In 1985 government was buying goods andservices which cost $ 815 billion or 20 per cent of GNP.
  06 май 2013 13:06  
👍
0
👎 01

Помогите с заданием пожалуйста   1 ответ

В каких функциях употреблено причастие 1, в приведённых ниже предложениях
1. Following this method you can obtain positive result.
2. Smiling girls are nice.
3. Answering the last question the student failed
  20 окт 2019 13:31  
👍
+1
👎 12

Видо временная форма, проверьте меня)   2 ответа

Перепишите и письменно переведите предложения на родной язык. Определите
видо-временную форму сказуемого.

1. Next day the newspapers reported the event.- на следующий день газеты сообщили о мероприятии. — next day reported -past indef
2. You will find a house that takes your fancy in a beautiful setting.- вы найдете дом, который захватит ваше воображение.........- а дальше никак?-will find- future indef.
3. Germans have discovered…
  15 дек 2013 20:45  
👍
0
👎 01

Надо найти глагол-сказуемое и определить его видовременную форму и залог   1 ответ

надо найти глагол-сказуемое и определить его видовременную форму и залог.

1.the latest laser devices have found application in medicine.
2. many people visited the Lincoln Memorial last year.
3. scientific information is growing very rapidly now.
4. the enginer wiil have cjmpleted the experiment by the 1st of June.
5. science is becoming a leading factor in the progress of mankind.
6. they went to Hyde Park last Sunday.
7.…
  30 дек 2012 13:59  
👍
0
👎 01

Вставить слова (пожалуйста очень срочно)   1 ответ

Fill each gap in the text below with the correct word from the box.

means of production
available
management
defined
production
interfere
market

In a true (.......) economy the government plays no role in the (.......) of the economy, the government does not (......) in it. The system is based on (.......) enterprise with private ownership of the (......) and private supplies of capital, which can be (......) as surplus income (......) for investment in new business activities.
  29 ноя 2011 16:50  
👍
0
👎 01

Помогите пожалуйста англ.яз   1 ответ

задание:вставить пропушенные словаFill each gap in the text below with the correct word from the box.

means of production
available
management
defined
production
interfere
market
In a true (.......) economy the government plays no role in the (.......) of the economy, the government does not (......) in it. The system is based on (.......) enterprise with private ownership of the (......) and private supplies of capital, which can be (......) as surplus income (......) for investment in new business activities.
  29 ноя 2011 16:59  
ASK.PROFI.RU © 2020-2024