Предмет: Алгебра, автор: nuradel280788

решите пожалуйста, очень срочно

Приложения:

Ответы

Автор ответа: Otly4nik

Ответ:

x∈(2;+∞)

Объяснение:

$\left \{ {{2x+4\geq 0} \atop {x^{2} -4 > 0}} \right.$

$\left \{ {{2x\geq -4} \atop {x^{2} > 4}} \right.$

$\left \{ {{x\geq -2} \atop {\left \{ {{x > 2} \atop {x < -2}} \right. }} \right.$

{x∈[-2;+∞)

x∈(-∞;-2)U(2;+∞)

Общий ответ: x∈(2;+∞)

Otly4nik: Корень всегда положительный.

TANYAJK12KL: помогите мне пожалуйста очень нужна помощь

TANYAJK12KL: в профиле

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on a cruise last weekend?
*

Are you going
You went
Did you go
Do you go
He …….. in a cottage by the sea.
*

used to live
didn’t lived
would live
live
They …….. on the way to the hotel yesterday to book their boat tickets
*

are stopping
stoped
stop
stopped
She drives a …….. car.
*

fantastic, small, red
fantastic, red, small
small, fantastic, red
red, fantastic, small
Simon …….. his passport, so he missed his flight.
*

losed
is losing
loses
lost
The boys …….. to walk, so they rented bicycles to travel around the island.
*

doesn’t want
didn’t want
aren’t wanting
didn’t wanted
James …….. to rent a house by the sea, but it was too expensive.
*

tryied
tries
tried
tryed
Where …….. when he visits the UK every year?
*

does your cousin stay
is your cousin staying
did your cousin stay
do your cousin stay
Last summer we …….. a wonderful time when we stayed by the sea!
*

have
are having
haved
had
Did you …….. to go on holiday with your grandparents when you were ten years old?
*

using
uses
use
used
We visited America two years …….. . It was an amazing trip!
*

now
last
ago
then
Did Andrew go on a skiing holiday ……..?
*

last month
ago
every month
at the moment
Susan’s parents have a …….. puppy.
*

playful, young, brown
brown, young, playful
young, brown, playful
young, playful, brown
Natalie …….. to the village last week; it was a long trip and the road was bumpy.
*

is driving
drives
used to drive
drove
Maria …….. London two weeks ago.
*

is visiting
visited
visits
visit
Kate …….. back an hour ago from her trip to Hawaii.
*

comes
came
used to come
would come
What time …….. your dad leave for the airport yesterday?
*

did
is
do
does
She ...to see her cousins because they lived too far away.
*

didn`t use
doesn`t use
used to
didn`t use to
I bought a(n)... table from that antique shop over there.
*

wooden, small,antique, Italian
Italian, antique, wooden, small
small, antique, Italian,wooden
small,Italian, wooden,antique
Marcy …….. a dog when she was younger.
*
would have
has
used to have
did had
We travelled in a …….. boat and enjoyed the sun and the sea.
*

beautiful, white, new
beautiful, new, white
new, white, beautiful
white, beautiful, new

Sara …….. in a hostel near the city centre on her trip to Rome last month.
*
is staying
stayed
stay
stays
This .... vase is extremely beautiful.
*

blue,big,Venetial, crystal
blue, big, crystal, Venetial
big,blue,Venetial crystal
Venetial, crystal,big, blue
I ...go to dance class every week when I was younger.
*

Вариант 4
use to
used to
use
uses to