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Anhydrite is a mineral – anhydrous calcium sulfate, CaSO4. It is not a common mineral, as it easily alters the much more common mineral Gypsum…

A polynomial of the second degree is generally called a quadratic polynomial. In elementary algebra, the quadratic formula is the solution of the quadratic equation.…

Finding the Percent of a Number To determine the percent of a number do the following steps: Multiply the number by the percent (e.g. 87…

Anglesite is a lead sulfate mineral with the chemical formula PbSO4. It is a secondary lead mineral that always forms through the alteration of lead…

Andyrobertsite is a rare, complex arsenate mineral with a blue color. It is found in the Tsumeb mine in Namibia and named after Andrew C.…

Modern trends in compensation Compensation means the basic returns that an employee obtains from his/her work. Every organization offers a good compensation to attract and…

Methods of creating employee’s compensation Employee compensation refers to the benefits (cash, vacation, etc.) that an employee receives in exchange for the service they provide…

Andradite is a species of the garnet group. It is a nesosilicate, with formula Ca3Fe2Si3O12. It is a member of the Garnet group, and although…

Andesine is a silicate mineral, a member of the plagioclase feldspar solid solution series. Its chemical formula is (Ca, Na)(Al, Si)4O8, where Ca/(Ca + Na)…

Condition for Common Root of Quadratic Equations A polynomial of the second degree is generally called a quadratic polynomial. In elementary algebra, the quadratic formula…

Finding Missing Number in a Sequence A Sequence is a set of things (usually numbers) that are in order. To find a missing number, first,…

Andersonite, Na2Ca (UO2) (CO3)3·6H2O, or hydrated sodium calcium uranyl carbonate. It is a rare uranyl carbonate mineral, that was only described in the last half…