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www.reference.com/world-view/reverse-foil-9f437c5df429a16e

Reverse FOIL (first, inner, outer, last) is another way of saying factorization by grouping. To factor a polynomial, find the product of the first and the last coefficients. Then, find the two factors of the product that add up to the middle coefficient. Split the middle term into two terms, and the

www.reference.com/world-view/calculate-reverse-percentage-a7e7ecc1007b7cc1

Reverse percentage can be calculated by dividing a known amount by 1 minus the discount rate or 1 plus the tax rate. Such calculations are helpful in determining the original price of a sale item purchased or the pretax price of a transaction already done.

www.reference.com/article/one-calculate-reverse-sales-tax-f8d578aa0b626bb9

To calculate reverse sales tax, a person must convert the local sales tax to a decimal. Once that is done, he must add one to the decimal representing his sales tax. After that, the only thing left to do is divide the total price by the number obtained, which results in the original price. This make

www.reference.com/article/reverse-sales-tax-calculator-48e1a95844afc381

A reverse sales tax calculator lets a user figure out the amount of an original sale price before sales tax, according to Calculator Pro. The user inputs two values: the total amount that includes the sales tax and the sales tax percentage.

www.reference.com/article/foil-character-4377fb45f8643958

A foil is a character who acts as the opposite to another character and consequently highlights important features of that character's personality. Some examples in literature include Harry Potter and Draco Malfoy, X-Men's Professor X and Magneto, and Doctor Jekyll and Mr. Hyde.

www.reference.com/article/foil-own-hair-307707316b2c528e

To foil your own hair, comb and section hair, position the foil, and brush on the highlighting formula. Create as many sections and foils as needed to achieve the desired look.

www.reference.com/article/math-foil-56e34563752cdb2a

In math, FOIL is an acronym that reminds people how to expand the multiplication of two expressions in parentheses. FOIL stands for First, Outside, Inside, and Last, which is the order in which one should multiply the terms in the parentheses.

www.reference.com/world-view/dramatic-foil-7a59569c57e3da00

A dramatic foil is a character who may be similar or in parallel circumstances compared to the main character of the story. In this way, the dramatic foil is meant to serve as a basis of comparison with the main character, thereby enhancing the audience's perception of the main character's most impo

www.reference.com/science/reversible-change-e58a07f09a84c144

A reversible change is a physical change that can be undone. A final substance can be converted back to the original substance without creating any new material. Freezing, melting, dissolving, boiling, evaporating and condensing are reversible changes.

www.reference.com/science/examples-reversible-change-939e15737114892c

Examples of reversible changes include melting chocolate and changing it back into a solid by cooling it, and melting candle wax by heating it and solidifying the wax by cooling it. Reversible changes are changes that can be reversed. They are also known as physical changes.