MN ơi giúp mik với mik đag cần câu b và câu c

Cho tam giác MNP vuông tại M. Cho D là một điểm tùy ý trên MP, kẻ DE vuông góc với MN, DF vuông góc với MP. a) MEDF là hình gì? vì sao? tính diện tích biết rằng MF = 4 cm MD = 5cm. b) Kẻ MH vuông góc với PN. Tính góc EHF. c) Khi D di chuyển trên NP thì trung điểm K của EF di chuyển trên đường thẳng nào

Beatrice had had a number of jobs, none of them for very long. She had been a bus conductor ……1…… one time, then a postman, and ...... 2...... she had cleaned the floors in a supermarket. Usually she left the job when she got ......3...... of it. Sometimes she was sacked.

Then one day she saw an ……4…… for a job ……5…… a canal warden. She applied ……6…… the job, just because it sounded interesting, ……7……she had no idea……8……a canal warden did. Surprisingly, she ……9…… the job, and started work a few days ……10…… As ……11…… as she could see, her duties were to ……12…… an official cap and coat, and walk ……13…… the banks of the canal, enjoying the fresh air.

……14…… days when it rained, she ……15……. sit in a cafe nearby and watch the canal ……16……there. She ……17…… us it was the best job she had ever had.

Giúp với mình sắp phải nộp rồi

It was too good to …… 18……  of course. One day, she fell into the canal and shouted …… 19……  help. A fellow warden arrived …… 20……  find some passers - by pulling her out. The news that she could not swim …… 21……a shock to her employers. They said her main purpose was rescuing people …… 22……  fell into the canal. She says she never knew that. She also says they never asked her ……23…… she could swim. Anyway, she had to start looking for …… 24……  job. She says that she might still have been a canal warden if it had not ……25…… for falling into the canal that day.

Các bạn giúp với mình sắp phải nộp rồi

Beatrice had had a number of jobs, none of them for very long. She had been a bus conductor ……1…… one time, then a postman, and ...... 2...... she had cleaned the floors in a supermarket. Usually she left the job when she got ......3...... of it. Sometimes she was sacked.

Then one day she saw an ……4…… for a job ……5…… a canal warden. She applied ……6…… the job, just because it sounded interesting, ……7……she had no idea……8……a canal warden did. Surprisingly, she ……9…… the job, and started work a few days ……10…… As ……11…… as she could see, her duties were to ……12…… an official cap and coat, and walk ……13…… the banks of the canal, enjoying the fresh air.

……14…… days when it rained, she ……15……. sit in a cafe nearby and watch the canal ……16……there. She ……17…… us it was the best job she had ever had.

It was too good to …… 18……  of course. One day, she fell into the canal and shouted …… 19……  help. A fellow warden arrived …… 20……  find some passers - by pulling her out. The news that she could not swim …… 21……a shock to her employers. They said her main purpose was rescuing people …… 22……  fell into the canal. She says she never knew that. She also says they never asked her ……23…… she could swim. Anyway, she had to start looking for …… 24……  job. She says that she might still have been a canal warden if it had not ……25…… for falling into the canal that day.

Tìm giá trị của m và n để:

a)      chia hết cho B = x - 3.

b)     chi hết cho

c)      A = 3x² + mx + 27 chia cho x + 5 dư 27

d)     x³ + mx + n chia cho x+1 thì dư 7, chia cho x-3 thì dư 5