в треугольнику ABC угол BAC = 20 градусов. Найдите величину угла CBA  

Молотком ударяют по шляпке гвоздя площадью 3 мм2 с силой 10 Н. Каково при этом давление молотка на гвоздь?

Grammar: first conditional

Rewrite what the speakers said. Put the verbs in the correct tense.

1.Vannesa said, if o (find out) who took the CD, there (be) trouble.

There'll be trouble of i find out who took the CD.

2.Vanessa said, If they(not find) any clues, the police (questions) everyone again.

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3.Mike's mother said, if you (not hurry), you (be) late for the concert.

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4.The doctor said, if you (take) an aspirin, your headeche (get) better

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5.The doctor said, if you (eat) too much, you (feel) sick.

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6.Mike's mother said, if you (go) to be at midnight, you (be) tired in the morning.

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7.Mike said, if Emma (not be) in, i (leave) a message on the answerphone.

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8.dave said, if i (see) her at the party, i (ask) Maddy to dance.

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Почему насекомые самый многочисленный класс.