Предмет: Математика, автор: snizhanamykhailova

ДОПОМОЖІТЬ СРОЧНО, ЗНАЙТИ ГРАДІЄНТ ФУНКЦІЇ!!!!!!

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Ответы

Автор ответа: elvinello
0

Ответ:

Пошаговое объяснение:

Z=123

t=535

zt=535+123

zt=658

zt=658:2

zt=329      

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Помогите с английским Present Perfect vs. Present Perfect Continuous

I______________(never/be) abroad. *

has never been

has never been being

have never been being

have never been

2) They________( put) on a lot of weight since he came to Spain. *


have been putting

has been putting

has put

have put

3) My brother and me __________(read) your book all day. It's very interesting, but I'm only on chapter 2. *


has been reading

have read

have been reading

has read

4) The road company____________(build) the new road around the school for more than a year. *


has been building

have built

have been building

has built

5) Ben____________ (have) my dog for sixteen years. *


have had

has been having

has had

have been having

6) I __________(write) his essay all day, but I (not/finish) yet. *


have been writing/hasn't finished

has been writing/haven't finished

have been writing/haven't finished

have written/haven't finished

has written/hasn/t finished

7) You look hot. What ________(you/do)? *


has you been doing

have you done

have you been doing

has you done

8) I’ve been playing football ________. *


two hours ago.

all day.

yesterday.

at the moment.

last night

9) How long _________(Peter/play) the piano? "Since I was 5. *

have Peter been playing

has Peter been playing

has Peter played

have Peter played

10) Help, my friend__________________ (lose) my keys. How can he get home? *


have been lost

has lost

have lost

had been loosing

have loose

11) You can't still be thirsty! You ______________three glasses of lemonade. (drink) *


has drunk

have been drinking

have drunk

has been drinking

12) He wants to go home. He____________(ride) this bus for over 5 hours. *


have been riding

has riden

have riden

has been riding

13) This week my sons________(learn) ten new verbs. *


has learnt

have been learning

have learnt

has been learning

14) My family _______(play) hide-and-seek already. *


has played

have been playing

has been playing

have played

15) Actress________(do) her make-up for half an hour but_______(finish) it yet. *


has been doing…hasn't finished

have been doing…haven't finished

has done…hasn't been finishing

is doing…has finished

have done…hasn't been finishing