Предмет: Математика, автор: Аноним

КТО ПОМОЖЕТ ДАМ 100 БАЛЛОВ И ПОДПИШУСЬ , ОБЕЩЯЮ!!!!!

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Ответы

Автор ответа: Matematick228
1

Ответ:

1) 1 - 5х^2 = 1- 5(-4)^2 = 1-5 * 16=-79

2) а)y^7 *y^12 = y^(7+12) = y^19

Б) y^20 : у^5 = у^(20-5)= у^15

В)(у^2)^8= у^(2*8)= у^16

Г)(2у)^4=2^4 * у^4= 16*у^4

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I, II, III Conditionals

Task 1. Complete the sentences with the correct forms of the verbs in brackets.

a) If she (not, be) ______________________in a hurry, she would have never lost those documents.
b) If I (be) ______________________you, I wouldn’t spend all my pocket money on cosmetics.
c) You won’t go out if you (not, tidy) ______________________ your room.
d) If he had been more careful, he (not, lose) ______________________his driving licence.
e) If I had a car, I (go) ______________________on a long journey.
f) They (not come) ______________________to you tomorrow if you don’t apologise to them for being so rude.

Task 2. Complete the sentences with the correct forms of the verbs in brackets.

a) If I (be) ______________________ rich, I (buy) ______________________ a big house.
b) She (see) ______________________ her dentist tomorrow if she (has) ______________________ time.
c) If they (work) ______________________hard last week, they (earn) ______________________a lot of money, but they didn’t.
d) If I (be) ______________________you, I (tell) ______________________him the truth.
e) I (not be) ______________________late for work last week if I (wake up) ______________________earlier.
f) She (help) ______________________you with your housework tomorrow if you (ask) ______________________her.

Mixed Conditionals (II + III, III + II)

Task 3. Complete the sentences with the correct forms of the verbs in brackets.

a) If I (be) ______________________intelligent, he (pass) ______________________his exams very well last month.
b) If she (marry) ______________________him 10 years ago, she (be) ______________________ rich now.
c) She (not, feel) ______________________offended by his joke yesterday if she (have) ______________________a sense of humour.
d) I he (not, spend) ______________________all his money last week, he
(be able) ______________________to but this jacket now.