Tam giác ABC có BC= a, chiều cao từ A là h1. Ac= b, chiều cao tương ứng h2. AB= C, chiều cao tương ứng h3. Biết a, b, c tỉ lệ với các số 3; 4; 5. Hỏi h1, h2, h3 tỉ lệ với các số tự nhiên nào ?

Giúp mk với 2 giờ 15 mk cần rồi 

cho x, y tỉ lệ nghịch. x1 và x2 là 2 giá trị của x, y1 và y2 là 2 giá trị của y biết x2 = 3, y1 = 7 và 2x1 - 3y2 = 300. tìm x1 và y2

Mk cần gấp lắm các bạn giúp mk với

1. Force
a. He spoke forcefully about the problem of child labor.
b.He was a very forceful speaker.
c. The kidnapper forces the wealthy woman to stay quiet.<br>
2. Imagine
a. The child imagines she lived in a big house with the swimming pool.
b. He wrote a imagination about life in the year 2350.
c. It's wonderful to have lots of imaginations.
d. The story was very imaginable
e. Ice cream of every imaginable flavor.
f. As a child, I had an imaginative friend.

chúc bạn học tốt

Would you mind If I sat next to you.

question 1-10 , read the text below and think of the word which best fits each gap . use only one word in each gap . write your answers IN CAPITAL LETTERS

judo

when i first decided to (1)............................ up judo i was only seven years old . i(2) .................... seen a competition (3)........................... television and for some strange reason i just knew immediately that what they were doing on TV was also what i wanted to do. it must (4) .............................. the right decision because i have always been (5) ............................ best in my age group and i am usually(6) ........................ faster than my opponent. for the past 11 years , i have always looked forward (7) ............................... my judo lesson. last year, i finally became a black belt , but i (8)........................... been winning prizes in tournaments (9) ............................ i started . of course, i would love to win(10) ...................... medal at the olympics. we'll see!

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