help me 😲
K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Những câu hỏi liên quan
12 tháng 1 2019
Trả lời :.
Tuổi của Hà là:
\(\frac{1}{3}+\frac{1}{8}=11\left(tuổi\right)\)
Đáp số: 11 tuổi
Hk tốt,
k nhé
28 tháng 12 2019
a) Trên đoạn thẳng AB, ta có: AM < AB (2cm < 6cm)
=> điểm M nằm giữa 2 điểm A và B
Ta có: AM + MB = AB
=> 2 + MB = 6
=> MB = 6 - 2
=> MB = 4 (cm)
Vậy BM = 4cm
b) Vì I là trung điểm của đoạn thẳng BM
=> MI = 1/2. BM = 1/2 . 4 = 2(cm)
=> AM = MI (1)
Ta có: điểm A thuộc tia MA
điểm I thuộc tia MB
mà MA và MB là 2 tia đối nhau => điểm M nằm giữa 2 điểm A và I (2)
Từ (1) và (2) => M là trung điểm của AI
MS
5
23 tháng 12 2018
\(\frac{a^2+b^2}{b^2+c^2}=\frac{a^2+ac}{ac+c^2}=\frac{a\left(a+c\right)}{c\left(c+a\right)}=\frac{a}{c}\)
\(\RightarrowĐPCM\)
13 tháng 10 2017
41/24 - 2 x 1/2x + 2 x 5 = 0
41/24 - x + 10 = 0
x + 10 = 41/24
x = 41/24 - 10
x = - 199/24
EH
0
LN
4
1. New students are always welcomed by the teacher.
2. English is spoken all over the world.
3. The phonograph was invented by Thomas Edison in 1877.
4. Two children were found in the forest by the police.
5. Your order will be sent as soon as possible.
6. The problem is being studied carefully by the scientists.
7. The horse was being ridden by Pat Murphy.
8. The robbers have just been arrested by the police.
9. This room can't be used after 5 p.m.
1. A lot of money is pais by her.
2. A picture is drawn by me.
3. Blue shoes are worn.
4. You aren't helped.
5. The book isn't opened by him.
6. The letter isn't written.
7. Are you picked up by your mum?
8. I was hit.
9. The bus was stopped.
10. My car was stolen by a thief.
11. The prize wasn't won by her.
12. Their beds weren't made.
13. They weren't told.
14. Were they told by you?
15. Was the letter sent by him?
16. The air will be polluted by the smoke from factories.
17. A lot of water will be bought for the picnic on June 20th.
18. Will I be married by you?
19. You won't be picked up by Lan tomorrow?
20. The letter will be sent tomorrow afternoon.