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giúp với giúp với giúp e với ạ. e cảm ơn
TD
6 tháng 2 2022
a)\(-1,6:\left(1+\dfrac{2}{3}\right)=-1,6:\dfrac{5}{3}=-\dfrac{8}{5}.\dfrac{3}{5}=\dfrac{-24}{25}\)
b)\(\left(\dfrac{-2}{3}\right)+\dfrac{3}{4}-\left(-\dfrac{1}{6}\right)+\left(\dfrac{-2}{5}\right)=-\dfrac{2}{3}+\dfrac{3}{4}+\dfrac{1}{6}-\dfrac{2}{5}=\dfrac{-40+45+10-24}{60}=\dfrac{-9}{60}=\dfrac{-3}{20}\)
c)\(\left(\dfrac{-3}{7}:\dfrac{2}{11}+\dfrac{-4}{7}:\dfrac{2}{11}\right).\dfrac{7}{33}=\left(\dfrac{-3}{7}.\dfrac{11}{2}+\dfrac{-4}{7}.\dfrac{11}{2}\right).\dfrac{7}{33}=\left[\dfrac{11}{2}\left(\dfrac{-3}{7}+\dfrac{-4}{7}\right)\right].\dfrac{7}{33}=\dfrac{-11}{2}.\dfrac{7}{33}=\dfrac{-7}{6}\)
d)\(\dfrac{-5}{8}+\dfrac{4}{9}:\left(\dfrac{-2}{3}\right)-\dfrac{7}{20}.\left(\dfrac{-5}{14}\right)=\dfrac{-5}{8}-\dfrac{4}{9}.\dfrac{3}{2}+\dfrac{1}{8}=\dfrac{-5}{8}+\dfrac{1}{8}-\dfrac{2}{3}=-\dfrac{7}{6}\)
Ai giúp mình với ạ
SV
Sinh Viên NEU
CTVVIP
20 tháng 11 2023
1 correct
2 success => only success
3 was released => released
4 correct
5 focused on => on
6 as a => a
7 correct
8 each others => others
9 satisfy with => satisfy
10 correct
11 correct
DT
Đỗ Thanh Hải
CTVVIP
27 tháng 11 2021
1 were - would you play
2 weren't studying - would have
3 had taken - wouldn't have got
4 would you go - could
5 will you give - is
6 recycle - won't be
7 had heard - wouldn't have gone
8 would you buy - had
9 don't hurry - will miss
10 had phoned - would have given
11 were - wouldn't eat
12 will go - rains
13 had known - would have sent
14 won't feel - swims
15 hadn't freezed - would have gone
\(\sqrt{9}+\sqrt{16}=3+4=7\)
\(\sqrt{32}\cdot\sqrt{2}-\sqrt{8+1}=\sqrt{64}-\sqrt{9}=8-3=5\)
\(\sqrt{16}-\sqrt{81}=4-9=-5\)
\(2\sqrt{27}-\sqrt{75}=6\sqrt{3}-5\sqrt{3}=\sqrt{3}\)
\(\sqrt{3}\cdot\sqrt{27}-\sqrt{10-1}=\sqrt{81}-\sqrt{9}=9-3=6\)
\(\sqrt{75}+\sqrt{48}-\sqrt{300}=5\sqrt{3}+4\sqrt{3}-10\sqrt{3}=-\sqrt{3}\)
\(\sqrt{98}-\sqrt{72}+0,5\sqrt{8}=7\sqrt{2}-6\sqrt{2}+\sqrt{2}=2\sqrt{2}\)