\(2^3+2^3.2\)
k to to k lai to the
1+2+3+4+....+500
Hỏi có bao nhiêu số các số hạng?
k to to k lai
\(1+2+3+4+.......+500\)
Là dãy số hạng liên tiếp nên có tất cả 500 số.
=> 500 số hạng.
1+2+3+4+...+500
dãy trên có 500 số
vậy có 500 số hạng
90+90+90+90=
k mk k lai
to the
viet thanh luy thua:
10.10.10.10.10.10.10.10.10.10
k mk k lai to the ko trai loi
Ta có
kết quả
10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10
= 1010
nha bn
10.10.10.10.10.10.10.10.10.10
=10^10
ungr hooj nha
90+50+10+40+10+100
k mk k lai
nha to the voi troi
Tổng trên bằng :
\(90+50+10+40+10+100\)
\(=\left(90+10\right)+\left(50+40+10\right)+100\)
\(=300\)
^v^ k nhé
90 + 50 + 10 + 40 + 10 + 100
= 300
ủng hộ mk nha mọi người
cảm ơn trước
\(90+50+10+40+10+100\)
\(=\left(90+10\right)+\left(10+40+50\right)+100\)
\(=100+100+100\)
\(=100.3\)
\(=300\)
\(nha^{ }\)
1000+50+40+10
50.60+50.40
k mk mk k lai to the
nha
số đó là
1100
và 500
ai k mình
minh fk lại cho
ko hề nói dối
\(1000+50+40+10\)
\(=1000+\left(50+40+10\right)\)
\(=1000+1000\)
\(=1000.2\)
\(=2000\)
\(50.60+50.40\)
\(=50.\left(60+40\right)\)
\(=50.100\)
\(=5000\)
\(Nha^{ }\)
II. Match a verb in A with a phrase in B to have a complete phrase. (10 points) A 0. to drink 1. to go 2. to look 3. to live 4. to provide 5. to watch 6. to fix 7. to have 8. to prefer 9. to need 10. to arrive B sample 0. k a. in an urban area b. more money c. the news d. a meeting e. at the station at 5.30 f. for suitable jobs in the city g. the countryside to the city h. facilities for the people i. the computer j. to the countryside in the weekend k. a cup of tea
Question 2: Match a verb in A with a phrase in B to have a completel phrase.:
A
0. to drink
1. to go
2. to look
3. to live
4. to provide
5. to watch
6. to fix
7. to have
8. to prefer
9. to need
10. to arrive
B
a. in an urban area
b. more money
c. the news
d. a meeting
e. at the station at 5.30
f. for suitable jobs in the city
g. the countryside to the city
h. facilities for the people
i. the computer
j. to the countryside in the weeked
k. a cup of tea
0-k 1-..... 2-..... 3-..... 4-...... 5-..... 6-...... 7-...... 8-...... 9-...... 10 -.......
Hồ Bảo Trâm giúp em zới chụy ơi ><
Viet Lai cau Sao nghia k doi
1,i prefer books to films >i like.....
2,i prefer video games to computer games >i like.......
3,lan is the youngest of the three sisters >lan has......
4,mr tam drinks more coffee than mr lam>mr lam.....
1,i prefer books to films >i like books than films
2,i prefer video games to computer games >i like video games than computer games
3,lan is the youngest of the three sisters >lan has two sisters
4,mr tam drinks more coffee than mr lam>mr lam drink less coffee than Mr,Tam
1,i prefer books to films >i like books than films.
2,i prefer video games to computer games >i like video games than computer games.
3,lan is the youngest of the three sisters >lan has two sister.
4,mr tam drinks more coffee than mr lam>mr lam drink less coffee than Mr Tam.
1. I prefer books to films -> I like books than films.
2. I prefer video games to computer games -> I like video games than computer games.
3. Lan is the youngest of three sisters -> Lan has two sisters.
4. Mr Tam drinks more coffee than Mr Lam -> Mr Lam drinks less coffee than Mr Tam.
Cho các cân bằng sau :
( 1 ) 2 SO 2 ( K ) + O 2 ( K ) ⇌ xt , t o 2 SO 3 ( K )
( 2 ) N 2 ( K ) + 2 H 2 ( K ) ⇌ xt , t o 2 NH 3 ( K )
( 3 ) CO 2 ( K ) + H 2 ( K ) ⇌ t o CO ( K ) + H 2 O ( K )
( 4 ) 2 HI ( K ) ⇌ t o H 2 ( k ) + I 2 ( K )
Khi thay đổi áp suất, nhóm gồm các cân bằng hoá học đều không bị chuyển dịch là?
A. (1) và (3)
B. (2) và (4)
C. (3) và (4)
D. (1) và (2)
Chọn đáp án C
Hướng dẫn: Tổng hệ số trước và sau phản ứng bằng nhau với (3) và (4)