Cho ΔABC cân tại A .Kẻ đường phân giác ∠B và ∠C lần lượt cắt AB và AC tại M và N. BM ∩ CN tại I: a) Chứng minh ΔIBC là tam giác cân
b) Chứng minh ΔNBC= ΔMCB
c) Chứng minh AI là tia phân giác

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.