Diện tích mảnh bìa hình bình hành là:

S = a × h = 14 × 7 = 98 (cm2)

Đáp số: 98cm2

# https://lazi.vn/user/tnsociu

in a positive , a positive way

$\left(\genfrac{}{}{0ex}{}{2}{11\times 13}+\genfrac{}{}{0ex}{}{2}{13\times 15}+\genfrac{}{}{0ex}{}{2}{15\times 17}+\genfrac{}{}{0ex}{}{2}{17\times 19}+\genfrac{}{}{0ex}{}{2}{19\times 21}\right)\times 462-y=19$

$\Rightarrow \left(\genfrac{}{}{0ex}{}{1}{11}-\genfrac{}{}{0ex}{}{1}{13}+\genfrac{}{}{0ex}{}{1}{13}-\genfrac{}{}{0ex}{}{1}{15}+\genfrac{}{}{0ex}{}{1}{15}-\genfrac{}{}{0ex}{}{1}{17}+\genfrac{}{}{0ex}{}{1}{17}-\genfrac{}{}{0ex}{}{1}{19}+\genfrac{}{}{0ex}{}{1}{19}-\genfrac{}{}{0ex}{}{1}{21}\right)\times 462-y=19$

$\Rightarrow \left(\genfrac{}{}{0ex}{}{1}{11}-\genfrac{}{}{0ex}{}{1}{21}\right)\times 462-y=19\Rightarrow \genfrac{}{}{0ex}{}{10}{231}\times 462-y=19$

$\Rightarrow 20-y=19\Rightarrow y=20-19=1$

số bé nhất có 5 chữ số có tổng bằng 28 là : 10999

# https://lazi.vn/user/tnsociu

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# https://lazi.vn/user/tnsociu

1. There is a bank next our school.
=> next to
2. The supermarket is on the end of the street.
=> in

3. You can go a taxi.
=> take
4. Go out from the building and then turn right.

=> of
5. You can take a coach get to the cinema.
=> the
6. I’m going by plane so I don’t have much time.
=> because
7.  The post office is behind of the bank.
=> bỏ of
8. There is two department stores in my neighborhood?
=> Is there......

# https://lazi.vn/user/tnsociu

actively