√3 × 3 √3 = ? ...................

Các bạn giúp mik 2 bài này nha Bài 5 là tính số hạt Bài 6 là tính khối lượng nha

giúp mình với ạ Cho hình bình hành ABCD tâm O, lấy E thuộc CD sao cho AD =1/3 DC, AE cắt BD tại K. Từ O kẻ đường thẳng song song với AE, cắt CD ở F chứng minh: a. F là trung điểm của EC b. DE=FE=FC c. K là trung điểm của OD

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cần đáp án đúng nhất , đúng nhất được 40 điểm ,

What You Can Do To Stay Healthy Evidence shows that some of the leading causes of death such as heart disease, cancer,stroke, some lung diseases can be prevented by improving personal health (1) ........Eating right, staying physically active, and not smoking are a fewexamples of good habits that can help you stay healthy. diet contribute calories overweight physical activity more lifestyle cause Eating Right Eating the right foods and the right (2)...... of foods can help you live alonger, healthier life. Research has proven that many illnesses - such as diabetes, heart disease, and high blood pressure - can be prevented or controlled by eatingright. Getting the (3).......... you need, such as calcium and iron, and keepingyour weight under control can help. Try to (4) ......the calories you getfrom food with the calories you use through physical activity. It is never too late to start eating right. Here are some (5) ...............tips. Eat a (6)............. of foods, especially: Vegetables, Fruits, Dry beans (such asred beans, navy beans, and soybeans), whole grains, such as wheat, rice, oats, corn, and barley.Eat foods low in fat, saturated fat, and cholesterol, especially: Fish, poultry prepared without skin; lean meat, (7)............ dairy products. Physical Activity Research shows that physical activity can help prevent at least six diseases: heart disease,high blood pressure, obesity (excess weight), diabetes, osteoporosis, and mental disorders,such as depression. Physical activity also will help you feel better and stay at a healthy weight. Try to do a total of 30 minutes of constant physical activity, such as fast (8)................most days of the week. 1. A. habits B. routine C. habit 2. A. quantity B. Amounts C. number 3. A. Nutrients B. foods C. drinks 4. A. balancing B. gain C. balance 5. A. helpful B. good C. important 6. A. variety B. diversified C. varied 7. A. high-fat B. low-fat C. no-fat 8. A. waking B. driving C. eating

Từ văn bản bàn luận về phép học em hãy viết một đoạn văn trình bày suy nghĩ của mình về tinh thần tự học của học sinh hiện nay

p tích thành nhân tử x^2-4 nhanh có ctlhn

5. Martha and Julia have the same views Martha’s views __________________________

p tích thành nhân tử x^2-1 nhanh có ctlhn