To find the reciprocal of a fraction, flip it over, so that the numerator becomes the denominator and the denominator becomes the numerator. That is:The reciprocal of 4/5 is 5/4 Note that the…
Behold the Power of Exponents
Algebra
Encountering Expressions Introducing Variables Translating Words into Math Behold the Power of Exponents Living Large with Scientific Notation Dastardly…
Caliph of the Abbasid Empire Born: c.764 Harun al-Rashid became the fifth Caliph of the Abbasid dynasty in 786, and went on to become its most famous and celebrated leader. A number of the stories…
(Encyclopedia) bear, large mammal of the family Ursidae in the order Carnivora, found almost exclusively in the Northern Hemisphere. Bears have large heads, bulky bodies, massive hindquarters, short…
Converting Between Moles, Molecules, and GramsChemistryThe MoleWhat's a Mole?Molar MassConverting Between Moles, Molecules, and GramsPercent Composition Once you know how to find molar mass, you…
All Signs Point to the Discriminant
Algebra
Quadratic Equations and Inequalities Solving Quadratics by Factoring Completing the Square The Quadratic Formula All Signs Point to the Discriminant…
singer and actressBorn: 1895Birthplace: Wichita, Kansas McDaniel began her career as a teen, performing for traveling black minstrel shows in the West, and later sang in theaters and clubs. She…
U.S. News | World News Here are the key events in business and science news for the month of August 2009. Cash for Clunkers Program Extended (Aug. 6): The Senate votes 60–…
