Bài 1: Tìm GTNN hoặc GTLN của: a, A= 5-8x-x^2 b, B= 2x^2+y^2+2xy-4x-2y+3

|x-4|+|x-10|+|x-101|+|x+990|+|x+1000|=2004

Vẽ hộ ngọc con AMONG US với ạ :3 Thanks

Giúp mình giải chi tiết ví dụ 3 với ví dụ 4 với

nhanh gọn lẹ .....................................................................................................................................................................

Cho tam giác ABC có G là trọng tâm. I là trung điểm của cạnh AB. Điểm M thuộc cạnh AB sao cho : vectơ MA + 3MB = 0 a) Chứng minh vectơ MC+ 2MI = 3MG. b) Giả sử điểm N thỏa mãn vectơ AN = xAC .Tìm x để 3 điểm M,N,G thẳng hàng. Ai giải câu b hộ vs

Trường học quy định hs có mặt lúc 7 giờ sáng. Lúc 6 giờ 30 phút có 1 hs đi xe đạp từ nhà đến trường với v=12km/h. Khoảng cách từ nhà đến trường là 2,376 dặm(1 dặm=1,609 km). Hãy tính quảng đường từ nhà đến trường của hs này(làm tròn số đến hàng đơn vị) và xem hs này đến trường có đúng giờ quy định hay không?

giúp mik với 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Nhúng 1 tấm đồng kim loại có khối lượng 50g. Vào dd bạc nitrat. Sau một thời gian, đưa tấm đồng ra rửa sạch, làm khô cân lại được 53,04g. Hãy tính khối lượng bạc tạo thành ( giả sử toàn bộ lượng bạc sinh ra đề bám vào tấm đồng)

Nội dung và ý nghĩa từng đoạn trong bài " Cuộc chia tay của những con búp bê". Mai mk thi r,mong mấy bn giúp