(Employers may not begin the Form I-9 process until an individual accepts an offer of employment.) Forms I-9 must be kept for three years after the date of hire or one year after the date of the employee's termination, whichever is later.
Sine qua non (/ËsaÉªni kweÉª ËnÉn/; Latin: [Ësine kwaË ËnoËn]) or conditio sine qua non (plural: conditiones sine quibus non) is an indispensable and essential action, condition, or ingredient.
(tÄn'jÉnt) A line, curve, or surface touching but not intersecting another. The ratio of the length of the side opposite an acute angle in a right triangle to the side adjacent to the angle. The tangent of an angle is equal to the sine of the angle divided by the cosine of the angle.