x = A sin â¡ ( Ï [ t â K ] ) + b , {\displaystyle x=A\sin(\omega [t-K])+b\ ,}. 1  A is the amplitude (or peak amplitude), 2  x is the oscillating variable, 3  Ï is angular frequency, 4  t is time, 5  K and b are arbitrary constants representing time and displacement offsets respectively.
Modeling agency. A modeling agency is a company that represents fashion models, to work for the fashion industry. These agencies earn their income via commission, usually from the deal they make with the model and or the head agency. The top agencies work with big-budget advertising agencies and fashion designers.
For example, some agencies now are asking a model to pay to be on their website. While an agencyâs website is a very good marketing tool for a model to have and utilize, the problem lays in what the agency charges, which may vary from about five dollars a month to several hundred dollars a year.or example, some agencies now are asking a model to pay to be on their website. While an agencyâs website is a very good marketing tool for a model to have and utilize, the problem lays in what the agency charges, which may vary from about five dollars a month to several hundred dollars a year.