
Mn ơi gấp ạ
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1.Yes, they do
2..Yes, it is
3.People buy fruits and flowers from the market and decorate their house
4.People visit their family and friends
Độ dãn của lò xo:
\(F_{đh}=k\cdot\Delta l\Rightarrow\Delta l=\dfrac{F_{đh}}{k}=\dfrac{2}{100}=0,02\)m=2cm
Bài 11:
zt//xy
=>\(\hat{zAB}+\hat{ABx}=180^0\) (hai góc trong cùng phía)
=>\(\hat{ABx}=180^0-140^0=40^0\)
Ta có: tia Bx nằm giữa hai tia BA và BC
=>\(\hat{ABx}+\hat{CBx}=\hat{ABC}\)
=>\(\hat{CBx}=90^0-40^0=50^0\)
Ta có; \(\hat{CBx}=\hat{BCb}\left(=50^0\right)\)
mà hai góc này là hai góc ở vị trí so le trong
nên xy//ab
xy//ab
xy//zt
Do đó: ab//zt
1 his illness, he cannot come
2 her busyness, she couldn't help us
3 his illness, he tries to go to school on time
4 the bad weather, we tried to finish the work on the road
5 the bad weather, we got to the station late
6 the old house, she liked it
7 not wearing any shoes, Carol ran outside to see what was happening
8 being afraid of flying, Fiona had to get on the plane
TL
2 GB
cho mình xin k bn nhé
tui dốt tin lém huhu