Предмет: Алгебра, автор: tatyanalarina2

Найдите значение выражения:
1)18(-9)^-1
2)0.5^-2+(14)^-1
3)10^2*(150)
4) (0.97)^0+(0.1)^-3
5) (23)^-2
6) 2^-3-3^-2

Ответы

Автор ответа: gripsell20331

0

1) -2
2) 8
3) 2
4) 1001
5) 2.25
6) 1/6

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Вот текст:

Sleep
During the week I usually wake up at 6.30 a.m. I sometimes lie in bed for five
minutes but then I have to get up get out of bed and get dressed). Most evenings, I go to bed at about 11.30 p.m. I'm usually very tired, so I go to sleep / fall asleep very quickly. Occasionally though, I can't get to sleep (=succeed in sleeping). When that happens, I sometimes manage to fall asleep about 3 a.m., then I oversleep (=sleep too long) in the morning. If I have a late night (=go to bed very late; not an early night), I try to have a nap (=a short sleep, e.g. 20-25 minutes) in the afternoon. The weekends are different. On
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Food
In the week I have breakfast at 7.30 a.m., lunch at 1.00 p.m., and dinner around 7
p.m. I also have one or two snacks (=small amounts of food), e.g. cakes, biscuits or fruit, during the day at work. As I live alone / on my own / by myself (=without other people), I also have to make my own breakfast and dinner (=prepare breakfast and dinner for myself), but during the week I don't bother (=make an effort) to cook very much. I also
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Note: With breakfast, lunch or dinner in general, there is no definite article (the).
Keeping clean
In the summer I have a shower in the morning, but in the winter I often have a bath
instead (=in place of a shower). Sometimes I have a shave at the same time, or I shave when I have a wash and clean/brush my teeth after breakfast. I wash my hair two or
three times a week.
Note: In some contexts, it is more common in English to use have + noun than a
single verb, e.g. I'm going to have a wash. [NOT I'm going to wash.] Work
In the morning I leave home about 8.15 a.m. and get to work (=arrive at work) by 9
a.m. I have a lunch break (=stop work for lunch) from 1-2 p.m., and a couple of short
breaks during the day. I leave work around 5.30 p.m. and get home about 6.15 p.m.
Evenings
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nothing). But at the weekend I often go out (=leave the house for social reasons, e.g. go to the cinema or disco with friends), but quite often I also have friends for dinner (=invite friends to my house and cook dinner for them), or friends just come round (=visit me at
the house) for a chat (=conversation) or we play cards, e.g. poker or bridge.
Housework
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