Ở đây có ai giỏi kế toán tài chính 1 và kế toán tài chính 2 không ạ

What statement is true? 2x^2-9x+2=-1

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g