Предмет: Математика, автор: quavochevo

$y=2x^{3}-9x^{2} +12x+3$
Исследовние функции и построение её графика.

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Автор ответа: dnepr1

Исследование функции и построение её графика приведено во вложении.

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035b23b7d2c1d18ad0bb85b69b209211.docx

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Killer quakes rattle
Japan

Powerful earthquakes jolted central and
eastern Japan Saturday evening, killing 18 person in Niigata Prefecture,
injuring about 900 others, destroying a number of buildings and causing a bullet
train to derail, government and police officials said.

The initial temblor that struck at 5:56
p.m. registered upper 6 on the 7-point Japanese scale in Ojiya, Niigata
Prefecture, followed by aftershocks of the same scale, the Meteorological
Agency said. It warned of further powerful aftershocks.

At 6 p.m., the government established a
disaster task force at the prime minister's official residence.

In Tokamachi, Niigata Prefecture, a man in
his 30s died after being buried under the rubble of a wall that collapsed at a
restaurant. Some 50 to 60 injured people have been admitted to Niigata
Prefectural Tokamachi Hospital, local government officials.

In Ojiya, one person was confirmed to have
been killed in the disaster. A house collapsed and a landslide triggered by the
quake buried a number of cars. About 30 injured people were rushed to a local
hospital. Police officers rushed to the landslide scene to rescue people
trapped in a car while trying to confirm if anybody in the collapsed house was
injured.

Ojiya Municipal Government officials cannot
immediately confirm the extent of damage because many roads in the town have
been damaged, according to national government officials.

The Fire Defense Agency received a report
that several people were buried alive in Kawaguchi, and is trying to confirm
the information, officials said.

In Nagaoka, a fire broke out at three
houses, municipal government officials said. One of the fires has already been
extinguished. The local fire department dispatched ambulances to 20 locations
to transport residents injured in the quake.

Two coaches of a 10-car-long bullet train,
Toki No. 325 superexpress that left Tokyo for Niigata, derailed between Urasa
and Naganoka station on the Joetsu Shinkansen Line and is at a standstill, its
operator, East Japan Railway Co. said. However, the train did not topple over as
it was slowing down toward Nagaoka Station, and none of some 150 passengers or
crewmembers was injured in the accident.

All the expressways in Niigata Prefecture
have been closed. Electric power supply has been completely suspended to at
least some 250,000 households in
extensive areas of Niigata Prefecture, including Ojiya and Kashiwazaki.

The focus of the quake, which is estimated at 6.8 on the open-ended
Richter scale, was located about 20 kilometers below the ground in central
Niigata Prefecture.

The temblor was followed by aftershocks, three of which registered upper
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Объясните, как вы понимаете смысл высказываний:
1. "Старость не высмеивай, ведь ты идешь к ней"
2. "Дольше живет своих лет тот, кто добру посвятил свои годы"
3. "Человек молод и стар в зависимости от того,каким он себя ощущает"
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5. "Сорок лет-старость юности. Пятьдесят лет-юность старости"
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Спасибо всем заранее!!!

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Помогите решить, всего 4 задания. Главное решение

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