Trong mặt phẳng Oxy cho A(4;2), B(1;-2). Tìm tâm I đường tròn ngoại tiếp tam giác OAB

Asap 25 pts + brainliest to right/best answer

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.