сколько молекул содержится в 11 граммах углекислого газа

Complete the centences with suitable gerund: go dancing, go skiing, go running, go shopping.... There are many expressions with go+ing form ( gerund) like: A) I went _____ _____ ___ yestarday but i didn't buy anything. B) When we were in Switzerland we went ________ every weekend. C) He bought a yacht and went ______ in the Mediterranean. D) We had a wonderful rest on the beach. We went _____ every day. E) He went ___________ every morning. It's useful for health.

в треугольнике авс ас=вс,ав=10,высота ан=8.найдите cosA

вынесите множитель из-под знака корня

в корне x^15 y^2

назовите организмы,которые первыми на планете стали выделять при фотосинтезе свободный кислород.