Po Matematika: Zadachi

(_____) Problem 7 (Word Problem) A train leaves Moscow for St. Petersburg at 8:00 AM traveling 70 km/h. At 10:00 AM, another train leaves St. Petersburg for Moscow traveling 90 km/h. The distance between cities is 650 km. At what time do they meet?

(n = _____) Problem 6 (Combinatorics) In how many ways can you arrange the letters of the word "MATH" ? zadachi po matematika

(x = _____), (y = _____) Problem 4 (Geometry) In right triangle (ABC) with right angle at (C), (AC = 6), (BC = 8). Find: a) The hypotenuse (AB). b) (\sin A). (_____) Problem 7 (Word Problem) A train leaves