Trong mp toạ độ Oxy, cho tam giác ABC có toạ độ điểm A (3;7) và trực tâm H (-1;1), tam giác ABC nội tiếp đường tròn tâm I ( 1;2) . Trung điểm M của BC có toạ độ là bao nhiêu?

mng giúp mình câu c bài 1,2 với ạ

Viết chương trình tính tổng 100 số lẻ tự nhiên best công nghệ giúp mk zới

Làm hộ môn toán nha mấy bn hiền

cho hình nón bán kính đường tròn đáy bằng 5cm ,chiều cao bằng 12cm .tính diện tích xung quanh hình nón

Giải nhanh hộ mình bài 4 với ạ chi tiết chút

Tim gia tri nho nhat cua bieu thuc A=x^2+2x+2 B=x^2-4x+5 A=4x^2-4x+7 A=x^2+X+3 A=x^2-x+2 A=X^2-3x+4

Làm giúp mình thứ 7 mình phải nộp rồi

Câu 1. Mark the letter A, B, C, or D to indicate the correct answer to each of the following question. It’s believed that playing games on computers or smartphones for a long time can ______ children’s creativity. A set B stifle C stress D cast Câu 2. Mark the letter A, B, C, or D to indicate the correct answer to each of the following question. ______ he has won practically every amateur tournament he has entered, it is a good time to turn pro. A Although B Now that C Even if D However Câu 3. Mark the letter A, B, C, or D to indicate the correct answer to each of the following question. We will inform you about the show ______. A as soon as it is on air B before it was on air C after it had been on air D when it was being on air Câu 4. Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following question. A bay B yard C stay D gray Câu 5. Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following question. A products B clouds C teachers D cartoons Câu 6. Mark the letter A, B, C, or D to indicate the correct answer to each of the following question. I can’t ______ this noise any longer. I am going to write a letter of complaint to the building committee. A get back to B take away from C put up with D make out of Câu 7. Mark the letter A, B, C, or D to indicate the correct answer to each of the following question. One of the most common ______ of volunteering is feeling good about one’s self. A benefit B benefited C benefiting D benefits Câu 8. Mark the letter A, B, C, or D to indicate the correct answer to each of the following question. Ted got hold of the wrong end of the ______ as he did the opposite of what I told him to do. A bar B rod C stick D edge

Nêu công dụng của chấn lưu và tắc te của đèn huỳnh quang giúp minh vs