Cho góc xOy là góc tù, bên ngoài gó đó dựng tai Oz vuông góc với tia Ox và tia Ot vuông gics với tia Oy. Chứng tỏ rằng:xOy+zOt=180°

The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu

How many solutions does the nonlinear system of equations graphed bellow have?

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.