Предмет: Алгебра, автор: vadimamelnitsky

Аркадий Паровозов не помог(
Даю много баллов​

Приложения:

Ответы

Автор ответа: sangers1959
1

Объяснение:

Пусть самая меньшая сторона (катет) равна х см.      ⇒

Больший катет равен (х+14) см.

S=\frac{x*(x+14)}{2}=120\ |*2\\x^2+14x=240\\x^2+14x-240=0 \\D=1156\ \ \ \ \sqrt{D}=34\\ x_1=-24\notin\ \ \ \ x_2=10.\\10+14=24.\\\sqrt{10^2+24^2}=\sqrt{100+576}=\sqrt{676} =26.  

Ответ: самая большая сторона равна 26 см.

vadimamelnitsky: Большое спасибо
sangers1959: Удачи.
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Русский язык, автор: СанёкКороль
Что значит словосочитание триумфальная арка
2 года назад
Предмет: Другие предметы, автор: svietlanarybak
небольшой рассказ на тему Экология моего района
2 года назад
Предмет: Английский язык, автор: pepsi666R
Текст
When office workers looked out of their Manhattan skyscrapers, they couldn't believe what was happening down below. A plane was flying incredibly low over the river. But it wasn't out of control it looked as if it was landing on a runway Flight 1549 was taking off from LaGuardia airport when it hit a flock of birds. In a terrible coincidence, both engines failed. Less than five minutes later the plane was in the water. Miraculously, all 155 passengers and crew survived 2 According to passengers, one minute they were going up and the next minute everyone was screaming. A passenger who was sitting near the left engine told reporters that flames were coming out of it. think everyohe was saying their prayers, said one man. For a second, thought I was going to die right there in the plane, another added. The parents of a three-year-old girl and a nine-month old baby held their children tight while the plane was going down. It's good to be alive, they said,
3 The pilot, Chesley B Sullenberger, had only two choices: to land on water, or crash He made a quick decision, and managed to landon the busiest part of the Hudson River. Within minutes, 14 boats came to rescue the passengers wlao were standing on the wings and those who weren't wearing life jackets. A true hero, Sullenberger was the last to leave the sinking plane. One grateful survivor said he spoke to him while they were standing on a rescue raft. said I just want to thank you on behalf of all of us," he said. Sullenberger was very calm. He just smiled and said "You're welcome.


вопрос
Read the text again and answer the questions.
1 Where did the plane take off?
2 Why did the engines fail?
3 Were the passengers calm while the plane was coming down?
4 Why did the pilot decide to land in the river?
5 Why didn't most of the survivors get wet?
6 Did the pilot leave the plane as soon as it landed?
2 года назад
Предмет: Математика, автор: aleksandrp462
(можно с краткой записью?)
Туристы плыли по озеру на лодке со скоростью 6 км/ч и были в пути 5 ч.Обратно они возвращались на катере,который шёл со скоростью 15км/ч.Сколько времени туристы затратили на обратный путь?
(обозночения
v-Скорость
t-время
s-расстояние)
8 лет назад
Предмет: Математика, автор: lencztanya
В треугольнике ABC угол C=90°AC=корень2, cos B =1/3.НайдитеAB.
8 лет назад