Предмет: Математика, автор: Shoot921

Функция задана формулой f(x)=7x-2/21x+4. Найдите f(0)

Ответы

Автор ответа: Sergey7A

Ответ:

f(0) = -0,5

Пошаговое объяснение:

f(x)=(7x-2)/(21x+4)

f(0) = (7*0 - 2)/(21*0 + 4) = -2/4 = -0,5

Shoot921: у меня в ответах нет такого: 1) 1/3 2)-3/4 3)-4/3 4)0.75

Sergey7A: Вы так написали, что если нуль подставить функция не будет иметь смысла, я поставил скобки как мне показалось правильным, скиньте задание с правильно поставленными скобками)

Shoot921: в задание нет скобок. 7x-2числитель 21x+4знаменатель

Sergey7A: я так и написал

Sergey7A: всё верно посчитано

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: magatashmanov1

Speaking Task 4. Work in pairs. Choose one of the cards and make a dialogue with a partner. Give own points of view on topics, ask questions to clarify the answers and get the needed information, explain and justify your positions and answer your partner's questions. You have 1 minute to prepare and 2 minutes to talk, Card 1. Discuss with your partner the topic 'Our Health. The following questions will help you to organize your talk: 1) Do you go in for sports? 2) What kind of sport do you do? 3) How often do you go in for sport? 4) Are you a member of a gym? 5) What can you advise for people to stay healthy? Card 2. Discuss with your partner the topic 'Our Health'. The following questions will help you to organize your talk: 1) Do you sleep well? 2) How many hours of sleep do you usually get? 3) What do you do, if you can't get to sleep? 4) Have you ever drunk milk to get to sleep? 5) What do you do in order to sleep well? Card 3. Discuss with your partner the topic 'Holidays and Travel'. The following questions will help you to organize your talk: 1) Have you ever been in any foreign country? 2) Where have you been? 3) Are you planning to go anywhere for your next vacation? 4) If so, where and who with? 5) How long will you stay? Card 4. Discuss with your partner the topic Holidays and Travel'. The following questions will help you to organize your talk: 1) What festival is the most exciting in your country? 2) When is the festival celebrated? 3) Why is this festival celebrated? Total [6] 4) Does your family celebrate this festival? 5) Are there special foods connected with the festival?

5 лет назад

Предмет: Русский язык, автор: gajdarovalaura9

ПОМОГИТЕ ПОЖАЛУЙСТА!Я ОТВЕТЫ НЕ ПОНИМАЮ,МОЖЕТЕ ПОДРОБНЕЕ НАПИСАТЬ ОТВЕТ ПОЖАЛУЙСТА У МЕНЯ 2%ЗАРАДКИ
ПОМОГИТЕЕЕЕ!!СРОЧНО!

5 лет назад