Given the following system: ax --x(t)' m(t) +4 where m(t) is an input, and x(t) is a state variable and dt due to physics of the problem x(t) can take only positive values. derive the transfer function around the steady-state that corresponds to the steady state value of input m, -1.

Ithink 2 is the correct

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).