Предмет: Математика, автор: anastasialebedeva10

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Автор ответа: Света19999
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Смотри ответ на фотографии.
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Автор ответа: sedinalana
0
log(7)x³=2
3log(7)x=2
log(7)x=2/3
(log(49)x)²=(log(7)√x)²=(1/2*log(7)x)²=(1/2*2/3)²=(1/3)²=1/9
Ответ 2
Похожие вопросы
Предмет: Английский язык, автор: Аноним
b Read an a rticle about the to p a irports in the world .
Which is t he best airport(s) if you .. . ?
have a medica l problem
2 would like to see a film
3 want to do some port or exercise
4 need to leave your dog for the weekend
5 are worried about getting lost
6 wa nt to sleep between flights
7 would like to see the city between flights текст:
For many people airports are a nightmare - long queues
when you check in and go through security and an even
longer wait if your flight is delayed. But there are some
airports where you can actually enjoy yourself. All good
airports have excellent facilit ies for business people and
children, free Wi-fi, restaurants, cafes, and shops. But the
best airports have much more ...
SINGAPORE AIRPORT is paradise for flower lovers, as it has an
indoor orchid garden! It also has a rooftop swimming pool and
a free sight-seeing tour for people who have at least five hours
to wait for their connecting flight.
If you like computer games, you'll never be bored at HONG
KONG INTERNATIONAL AIRPORT - there are dozens of free
Playstations all over the terminals! It's also good for people
with no sense of direction - there are 'Airport Ambassadors' in
red coats, who help you to get from one place to another.
SEOUL AIRPORT is the place to relax. You can go to the
hairdresser and have beauty treatments or a massage. Sports
fans can also play golf at their 72-hole golf course!
MUNICH AIRPORT helps to keep passengers entertained with
a 60-seat cinema and non-stop films. There is also free coffee
and tea near all the seating areas, and lots of free magazines
and newspapers.
If you worry about your health and like to be near medical
services at all times, OSAKA AIRPORT in Japan is the perfect
place to wait, as it has a dentist and doctor's surgery. And for
people with animals, there is even a pet hotel!
If you have a long wait between flights at ZURICH AIRPORT in
Switzerland, you can rent day rooms with their own bathroom
and kitchen and wake-up call service. So you can have a shower
and then sleep peacefully until you have to board your flight.
Предмет: Английский язык, автор: Sergei228hjq
Хелп с английским плес ( вторыеые 15 предложений)
16. Ken ..... down when he was climbing over a fence and ….. his trousers.

1) felled, teared 3) had fallen, torn

2) fell, tore 4) was falling, was tearing

17. Unless she ..... her words carefully, she …... in trouble.

1) chooses, will be 3) will choose, won't be

2) hasn't chosen, will be 4) doesn't choose, won't be

18. Robert ..... in tonight, because he ……. loads of paper work to do.

1) will be stayed, is having 3) is staying, has

2) was staying, has 4) will be staying, has had

19. Electric lightning ..... a symbol of civilization ever since Thomas Edison first …...

the streets of New York.

1) is, has illuminated 3) is, had illuminated

2) had been, was illuminating 4) has been, illuminated

20. ..…The mountaineers ..... for five hours before they ..... the top of the mountain.

1) had been climbing, reached 3) have climbed, were reaching

2) had climbed, were reached 4) were climbing, had reached

21. I ..... to the British Council to ask about courses and three weeks later the answer ....

1) have written, came 3) wrote, has come

2) wrote, came 4) am writing, came

22. Unless you ….. the bill, they …... off the electricity.

1) pay, will cut 3) haven't paid, will cut

2) will pay, will have cut 4) won't pay, won't cut

23. The doctors say that Max ..... good progress and ..... an operation.

1) has been made, won't need 3) is making, won't need

2) is making, won't be needed 4) is being made, doesn't need

24. I am glad I ..... from Moris, who …... in Australia for the last two months.

1) hear, is 3) hear, had been

2) have heard, had been 4) have heard, has been

25. He was nervous when he first on a British road because he ... on the left side before.

1) appeared, had never driven 3) was appeared, never drove

2) had appeared, was never driving 4) has appeared, had never driven

26. The crew all ..... from the ship before it ......

1) run, sunk 3) had run, sunk

2) ran, sank 4) ran, had sank

27. Just in case Gregory ..... to contact Jane, I …... him her new address.

1) decides, will give 3) decided, am giving

2) will decide, give 4) will decide, will be given

28. Nowadays fitness ….. a generally accepted principle of life and more and more

people ….. fitness clubs.

1) will become, had joined 3) is becoming, join

2) has become, will have joined 4) becomes, are being joined

29. The manor house ….. on this spot since it ..... two hundred years ago.

1) stands, had been built 3) has been standing, had been built

2) has stood, built 4) has stood, was built

30. By the year 2020 scientists ..... an electric car, so probably people …... gasoline-

powered cars any longer.

1) will have perfected, won't be driving

2) will be perfecting, won't drive

3) will perfect, won't have driven

4) will have perfected, won't be driven