Ciąg (a, b, c) jest arytmetyczny i a + b + c =33. Ciąg (a, b+3, c+13) jest geometryczny. Oblicz a, b, c.
Ciąg (a, b, c) jest arytmetyczny. W ciągu tym a + b + c = 33.
W ciągu arytmetycznym, gdzie r - różnica tego ciągu, mamy:
Możemy więc napisać:
Choose the correct item.
1. Maria claims .... 15 kilos since she went on a diet.
A. to have been losing
B. to lose
C. to have lost
D. to be losing
2. Emma felt a small pain in her leg but she continued .... because she wanted to finish the race.
C. to be running
D. to have run
3. Some people at the gym were making too much noise so they were asked ......
A. to leave
C. to be leaving
4. Steph objected ….. so much for a simple pair of tennis shoes.
A. to pay
D. to paying
5. He went to Janice's house only ……... that she wasn't there.
B. to see
D. to be seen
Rewrite the second sentence so that it has the same meaning as the first sentence.
‘I want to write a book about crime fiction,’ the professor said.
The professor said that he wanted to write a book about crime fiction.
1. ‘The Prime Minister is talking about unemployment,’ she said.
2. ‘I can't solve all the issues on my own,’ he said.
3. ‘The painting disappeared one night in October,’ the police said.
4. ‘No, I don't want to report a crime,’ he said.
5. 'The judge has found the burglar guilty,' she said.
Write the missing words to complete the sentences. The first letters of these words have been given.
The stories in that soap opera are so complicated that you have to watch every day to understand what’s going on.
1. That actress played the p__________ of Jane Eyre in the TV series.
2. The play had such great r__________ that they kept it at the theatre for another three months.
3. This new show is s__________ on the network’s website, so you can watch it whenever you like.
4. Many actors a__________ in a couple of TV series before they get a big film role.
5. The singer signed a r__________ contract when she was fifteen, and her first record came out the next year.
6. Although their song was in the c__________ for several weeks, it never reached number one.
7. The singer has announced that she is going to r__________ a new album tomorrow, and I’m going to download it immediately.
8. Our group had only played small v__________, so appearing in a stadium was a thrill.
9. Performers say that doing a live g__________ helps them understand what their fans like.
10. After the group had a h__________ single they began touring around the world.