-
Вопрос по алгебре:
Не выполняя построения, ответьте на вопрос, принадлежит ли графику функции у=х2 заданная точка : А(-1;-1) В(-2;4) C(4;-16) D(-3;-6)-
Автор:
harley32
-
-
Ответ:
т.к x^2 неотрицательное число, то А, С и D тоно не на графике - там ординаты отрицательные
проверим точку B: -2 ^2 = 4 - принадлежит графику
Ответ:
1)A(-1;-1)
y=x^2
y=(-1)^2= 1 следовательно не принадлежит
и т д
точка В принадлежит
точка С не принадлежит
точка Д не принадлежит
Еще 4 ненужных тебе вопроса, но это важно для поиска
-
Вопрос по алгебре:
Стандартным видом многочлена 3h−4−2h2+0,5⋅3h является
............................///////-
Ответов: 6
-
-
Вопрос по алгебре:
2cos(x+п/4)cos(2x+п/4)+sin3x -упростить
-
Ответов: 1
-
-
Вопрос по английскому языку:
1. He knows Africa well because he (travel) a lot there.
A has been travelling
B has travelled
2. You (write) this composition for two hours and can't complete it.
A have been writing
B have written
3. – John is still repairing his car.
– He must be tired. He (repair) it all day.
A has repaired
B has been repairing
4. Alice promised to come, but she's absent. Something (happen) to her.
A has been happening
B has happened
5. The children are drawing. They (draw) since they came home.
A have been drawing
B have drawn
6. ... they (tell) anything about their summer plans?
A Have they been telling
B Have they told
7. My aunt (have) the big house in the country.
A has always been having
B has always had-
Ответов: 1
-
-
Вопрос по английскому языку:
Вставьте something, anything, nothing или everything Образец: My husband taught (научил) his son ___ he knows. My husband taught his son everything he knows. 1. Her patient has a bad memory. She can't remember (помнить) ___. 2. I think there is ___ wrong (что-то не так) with my watch. 3. We've got ___ to eat. We've got only ___ to drink. 4. The student didn't understand ___ because she heard ____. 5. Does he know ___ about computers? - Yes, he knows ___ because he is the best specialist in computer science at Harvard University. 6. He felt terrible. He couldn't do ___ else. 7. Is there ___ interesting in the book? 8. I didn't take any money with me, so I couldn't buy ___. 9. My new eyeglasses are very good, I can see ___now. 10. I saw ___ near the wood (лес) that looked like (выглядело как) a tent.-
Ответов: 1
-