Для достоверности (x+6)^3-x(x+9)^2=27 - №12608391

Для достоверности

(x+6)^3-x(x+9)^2=27
- Предмет:
  Алгебра
- Автор:
  dum dum
- 6 лет назад

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Ex. 50. Use the Simple Present , Present Continuous, or Simple
Past form of each verb in brackets.
1. A: Valerie … now ? (cook) B: No, she’s not. She (cook) yesterday.
Bob (cook) now. Valerie (cook) … every other day.
2. A: Yolanda is a hardworking student! It’s midnight and she …
still … (study). She (study) ... all last weekend, too. B: I think she
(study) every day of the year
3. A: Don’t wash the curtains. You (wash) ... them last week.
B: I (wash, not) ... the curtains now. I (sew) ... them. There’s a
small rip on the bottom.
4. A: It (snow) ... a lot last night. How are the streets? B: I don’t
know. Call Dad at the office. He (walk) ... to work this morning.
A: Okay.
5. A: Gail is in the hospital. She (call) ... me yesterday.
B: I know. I (visit) ... her last night. A: Oh, that’s good. Laura (visit)
... her now, and I (want) ... to visit her this afternoon.
6. A: … you (want) to walk to the park now? B: No, I (walk) ...
five miles before lunch. I’m tired now.
27
7. A: What … she (do) now? B: She (bake) ... more cookies. She
(bake) ... cookies yesterday, but we (finish) ... them last night.
8. A: … you (talk) to Bob now? I (need) ... to tell him something.
B: No, I (talk) to Juan. I (talk) to Bob an hour ago.
9. A: You look tired today. B: I am. Ellen (call) ... me at six
o’clock in the morning. A: … you (joke) ... ? Why? B: She (want)
... to borrow my sweater.
- Предмет:
  Английский язык
- Автор:
  casonfranco
- 6 лет назад
- Ответов:
  
  2
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Ex. 31. Use either Simple Present or Present Continuous of the
verbs in the brackets.
1. I can’t afford that ring. It (cost) … too much. 2. Look. It (begin)
… to rain. Unfortunately, I (have, not) … my umbrella with
me. Tom is lucky. He (wear) a raincoat. 3. I (own, not) … an umbrella.
I (wear) … a waterproof hat on rainy days. 4. Right now
I (look) … around the classroom. Ann (write) … in her book. Carlos
(bite) … his pencil. Peter (scratch ) … his head. Ahmed (stare) …
out of the window. He (seem) … to be daydreaming, but perhaps he
(think) … hard about verb tenses. What (think, you) … Ahmed (do)
... ? 5. There’s a book on my desk, but it (belong, not) to me. 6. Dennis
(fix) … the roof of his house today, and he (need) … some help.
Can you help him? 7. Barbara (tutor, often) … other students in her
math class. This afternoon she (help) … . Steve with his math assignment
because he (understand, not) … the material they (work)
… on in the class this week. 8. Right now I (look) … at Janet. She
(look) … angry. I wonder what’s the matter. She (have) … a frown
on her face. She certainly (have, not) … any fun right now. 9. A:
Who is that woman who (stand) … next to the window? B: “Which
woman ? (Talk, you) … about the woman who (wear) … the blue and
gold dress ? A: No , I (talk, not) … about her. I (mean) … the woman
who (wear) … the blue suit. B: Oh. I (know, not) … . I (recognize,
not) … her. 10. A: Close your eyes. Now listen carefully. What
(hear, you) … ? What (do, I) … ? B: I (believe) … you (rub) … the top
of your hand ? A: Close, but not exactly right. Try again. (Listen,
you) … carefully? B: Aha! You (rub) … your hands together. A:
Right!
- Предмет:
  Английский язык
- Автор:
  molly87
- 6 лет назад
- Ответов:
  
  1
- Смотреть
Ex. 34. Use either Present Simple or Present Continuous.
1. It (be) … a cool autumn day. The wind (blow) … and the leaves
(fall) … to the ground. 2. My roommate (eat) … breakfast at exactly
seven o’clock every morning. I usually (eat, not) … breakfast at all.
What time (eat, you) … in the morning? 3. A: (shop, you) … at this
store every week? B: No I … I (shop, usually) … at the store near my
apartment. A: (shop, you) … here now? B: I (try) … to find something
special for my father’s birthday. 4. A: Flowers! Flowers for
sale! Yes sir! Can I help you? B: I’ll take those — the yellow ones.
18
A: Here you are, mister. Are they for a special occasion? B: I (buy)
… them for my wife. I (buy) … her flowers on the first day of every
month. 5. A: I like to read. How about you? (read, you) … a lot? B: Yes,
I … . I (read) … at least one novel each week, and I (subscribe) … to
several magazines. And I always (look) … at the newspaper during
breakfast. 6. A: Knock, knock! Anybody home? Hey, Bill! Hi! It’s
me. Where are you? B: I (be) … in the bedroom! A: What are you doing?
B: I (try) … to sleep! A: Oh. Sorry. I won’t bother you. Tom,
shhh. Bill (rest) … . 7. Before you begin to study, you should ask
yourself two questions. First, “Why (study, I) … this subject right
now?” Second, “What (want, I) … to learn about this topic?” Students
(need) … to understand the purpose of their study. 8. In cold
climates many trees (lose) … their leaves in winter. They (rest) …
for several months. Then they (grow) … new leaves and flowers in
the spring. Some trees (keep) … their leaves during the winter and
(stay) … green all year long. In some regions of the earth trees
(grow, not) … any leaves. (grow, tree) … on all of the continents in
the world?
- Предмет:
  Английский язык
- Автор:
  oscar1ziv
- 6 лет назад
- Ответов:
  
  1
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Помогите пожалуйста решить. Пожалуйста подробнее.
Найдите все значения параметра a , при каждом из которых уравнение - корень из 4+sin^2x=a - cosx имеет хотя бы одно решение на промежутке от 3Пи/4 до Пи.
- Предмет:
  Математика
- Автор:
  chippy3saq
- 6 лет назад
- Ответов:
  
  2
- Смотреть

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