Предмет: Математика, автор: Megacoocker

Ребята решите пожалуйста !!!!!!
Напишите ответы и решения!
Решите все номера !
Умоляю!!!
От вас зависит моя оценка !
Срочно! Надеюсь :)

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Ответы

Автор ответа: Theprofessor1
0
1 задание .
6(a+1)*(a+1) = 6a^2 + 30
a^2 + 2a + 1 = a^2 + 5
2a = 4
a = 2
2 задание.
Гипотенуза основания равна 5. Высоту найдем из выражения для площади поверхности S=2S+Ph
2*1/2(одна вторая)*3*4+(3+4+5)h=132
12h=120
h=10.Ответ 10
3 Задание .


Theprofessor1: Подождите немного , будет 3
Theprofessor1: Vцилиндра=пR2h

Vконуса=1/3пR2h

Объем цилиндра в 3 раза больше объема конуса
Theprofessor1: 48:3=16 , Ответ :16
Автор ответа: sangers
0
1.
22. Пусть ребро куба - х.   ⇒
6*(x+1)²-6*x²=30
6*(x²+2x+1)-6*x²=30
6x²+12x+6-6x²=30
12x+6=30
12x=24
x=2.
Ответ: ребро куба равно 2.
23.
Гипотенуза равна √(3²+4²)=√(9+16)=√25=5
S полн=2*Sосн.+3*H+4*H+5*H=2*(3*4/2)+H*(3+4+5)=12+12*H=132
12+12*H=132
12*H=120  |÷12
H=10.
Ответ: H=10.
24.
Vцилиндра=πr²H=48
Vконуса=(1/3)*πr²H=48/3=16.
Ответ: Vконуса=16.


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The series started with a scene on a flight from
Sydney, Australia, to Los Angeles, USA. The plane
was flying over the Pacific Ocean when, suddenly,
it crashed. There were 324 passengers on the plane
and everybody thought they were dead. But in the
mysterious world of Lost, 48
passengers survived.
The survivors landed on a small island and they
worked together to find food. Every day, they waited
for a ship or a plane, but help never arrived. While
they were living on the island, they had a lot of scary
experiences. In one episode, the survivors were
walking in the jungle when they saw a huge polar
bear. They discovered that other people were living
on the island, but the Others' weren't friendly.
There was a flashback in every episode. These
showed what the characters were doing before the
plane crashed. One of the most interesting characters
was the American doctor and leader of the group,
Jack (played by Matthew Fox). The flashbacks
explained a lot about the characters, but the island
kept its secrets.
Audiences loved Lost because the plot was very
unusual. The island was still a mystery when the
series ended, after 114 episodes, in 2010.​