Предмет: Алгебра, автор: андрей20027

решите пожалуйста если можно

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Автор ответа: jekadva
0
1)2 5/14-1 4/21=2 15/42-1 8/42=1 7/42=1 1/6
2)4,2:1 1/6=21/5:7/6=21/5*6/7=18/5=3,6
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=7²+12a-4a²+15-5a=3a²+7a+15
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ТЕСТ - PRESENT SIMPLE, PRESENT CONTINUOUS, PAST SIMPLE.

1. Розкрийте дужки та вставте необхідну форму дієслова

1) My sister ….. (clean) the kitchen now.
2) I often ….. (buy) food on Fridays.
3) Nick …. (not/go) to the Caucasus last year.
4) Look out! Who….. (watch) you?
5) My grandfather usually ….. (work) in the garden in the morning.
6) I ….. (do) my homework last Monday.
7) Sometimes Maria ….. (cook) lunch for herself.
8) Sorry! I … (be late).
9) The manager is busy. He …..(talk) with a customer.
10) I ….. (be) in the Crimea last summer.
 
2. Переробити речення у питальні:
1) I forgot my umbrella. …………………………………………   ?
2) My mother called me 10 minutes ago. ………………………...  ?
3) The alpinist is climbing the mountain. ………………………… ?  
4) I go to the gym every day. ………………………………………?
5) My cat is sleeping in his basket. ……………………………………?
 
3. Переробити речення у заперечні:
1) My elder sister plays the violin every day …………………………..
2) Boys are playing football at the stadium. ……………………………
3) I do shopping twice a week. ………………………………………….
4) I flew to Dublin last year. .....................................................................
5) My parents went to China last winter. ..................................................



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