: Cho ABC
nhọn. Lấy M thuộc cạnh BC. Qua M vẽ MD//AC (D

AB), ME//AB (E thuộc AC).
a) Chứng minh ADME là hình bình hành
b) Gọi I là trung điểm AM. Chứng minh D, I, E thẳng hàng

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?

Apack of gum would be considered a(n) necessity luxury item small ticket item unaccountable expense