В треугольнике ABC проведена прямая, параллельная основанию AC и пересекающая стороны AB и BC в точках K и M соответственно. Найдите площадь треугольника AMC, если известно, что KM=2, AC=10, cosC=3/5, S BMK=0,8

Зарплата учителя составляла 1800 леев. Ее повысили на 35%. КАКОВА ТЕПЕРЬ ЗАРПЛАТА УЧИТЕЛЯ?

Переделайте предложения из действительного залога в страдательный. 1. He is writing a letter at the moment. 2. John was preparing report all day yesterday. 3.We are learning grammar now. 4. At present mankind is making considerable investments to eliminate air pollution. 5. Today the changes in the global climate and water balance are bringing about serious changes in the environment. 6. Many scientists are constantly carrying out experimental work to solve the problem of environment protection. 7. The company is making plans for the future.

Choose the correct answer. 1). Ian ............ a shower at the moment, so could you call back in about half an hour? A. takes; B. is taking; C. has taken; D. has been taking. 2). ............ to Ipswich before? A. Do you ever go; B. Are you ever going; C. Have you ever been; D. Have you ever been going.

3).I ............ to all the local newspapers and TV stations to complain. A. already write; B. already writing; C. have already written; D. have already been writing.

4)............. TV for the last four hours? Turn it off and get some exercise! A. Do you watch; B. Are you watching; C. Watched you; D. Have you been watching.

5). Edik, ............ hockey competitively or just for fun? A. do you usually play; B. are you usually playing; C. have you usually played; D. have you usually been playing.

6). That’s the fi rst time ............ an answer right today! A. I get; B. I am getting; C. I have got; D. I have been getting.

7). Jessica has ............ left, I’m afraid. A. already; B. yet; C. still; D. so far.

8). Dan ............ in the living room while we redecorate his bedroom. A. sleeps; B. is sleeping; C. has slept; D. does sleep

9). Unfortunately, Simone ............ a day off very often. A. doesn’t get; B. isn’t getting; C. hasn’t got; D. hasn’t been getting.

10). Actually, I ............ a cup of tea fi rst thing every morning, but then I switch to coffee. A. do drink; B. am drinking; C. have drunk; D. have been drinking.