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 Everyday Examples
Binomial:  An algebraic expression with two unlike terms.
 Image source: http://www.aspenhistory.org/images2/hl&cp.jpg The surface area of many three-dimensional objects, such as a cylinder, a square pyramid, and a cone can be represented as a binomial expression. For example, a manufactor can determine the amount of aluminum needed to produce a cylindrical tin can by evaluating the binomial expression 2(pi)r2 + 2(pi)rh, where r is the radius of the circular base and h is the height of the can (Note that 2(pi)r2 gives us the surface area of the top and bottom of the can, and 2(pi)rh gives us the surface area of the rest of the can). Image source: http://www.hoteljobs.ie/images/waiter.gif Salaries for waitstaff at restaurants can be represented by binomial expressions. A table server will receive \$4 per hour for working and any additional money made on tips. Therefore, the binomial expression 4h + t is the total amount of money earned after h hours of work and \$t in tips.