Overview The root of any number is specified by the radical symbol (√). It is the inverse operation to raising a number by an exponent. Roots may be rational numbers…
read moreOverview: The probability of an event is determined by how likely that event is to happen. If an event is impossible, it has a probability of 0. If an event…
read moreOverview: Many equations use more than one variable, because there is more than one unknown in the sentence. Many times, one variable is expressed in terms of the other variable. …
read moreOverview: Quadratic equations are very common in algebra. They have the form y = ax2 + bx + c, where a is not equal to 0. The graph of a…
read moreOverview: Triangles have many different properties. For example, the sum of all three angles is always equal to 180o. The area of a triangle is equal to 1/2 times the…
read moreOverview: To solve equations with the variable on both sides, move all variables to one side or another. This can be accomplished by using the addition or subtraction principle of…
read moreOverview: Working backwards is another way to solve some math problems. If the result is given at the end of a series, follow each step until the problem is complete. …
read moreOverview Radical expressions involving square roots have many applications in algebra. If an equation calls for a variable to be squared, its solution will be a square root. The principal…
read moreOverview: What Is a Confidence Interval? Unless the population is small enough to determine each member, researchers cannot know the exact value of the population mean. However, using statistical techniques,…
read moreOverview: Solving Linear Systems In order to solve systems of two sentences, the solution has to be true for both sentences. For example, the solution of a problem such as…
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