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How do you find the range of a function?

Many times, a math problem provides a function and asks for the domain and the range. With the equation y = 3, the range is the number 3, the graph is a horizontal line crossing the y-axis at 3, and the domain is all real numbers, as the line would extend infinitely in both directions.\nOther functions are more complex, though, and require graphing to establish the range. The function y = (x^2 + 10 x + 25)/(x^2 - 1) does not allow all real numbers into the domain, as division by zero doesn't produce a solution. Factoring (x^2 - 1) yields (x+1)(x-1). If x is either 1 or -1, the function in..

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What are some tips for learning how to divide?

When practicing simple division, the first step is to set up the problem by writing the dividend on the right underneath the division symbol and the divisor outside on the left. Leave plenty of room underneath to carry out the equation and any necessary calculations. Work from left to right, starting by dividing the first digit of the dividend to see how many times the divisor can factor into it, and write this number above the division symbol. Next, see how many times the divisor can go into the first two digits of the dividend, and enter the answer at the top once again. Multiply the divisor..

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What is the meaning of "86"?

In the restaurant business, the term "86" is used to indicate that an item is not available. For example, to say "86 on prime rib" means that the restaurant has no prime rib to serve at that time. Customers who are refused service are also said to have been "86-ed."\nIn addition to the restaurant business, one possibility for the word's origin is the U.S. Navy, where AT-6 (pronounced "eighty-six") was the term used to describe a ship part that would be discarded.

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What is a quadratic equation solver?

Quadratic equation solvers commonly determine the values of x that results in y = 0 by using the quadratic formula, x = (-b + or - sqrt(b² - 4ac)) / (2a). The portion of the quadratic formula, b² - 4ac, is known as the discriminant that determines the number of real values for x that solves the equation 0 = ax² + bx + c. If b² - 4ac is greater than 0, then there are two real solutions for x. If b² - 4ac = 0, then there is one real solution for x. If b² - 4ac < 0, then there is no real solution for x, because sqrt(b² - 4ac) is an imaginary number.\nOther quadratic equation solvers determ..

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Where to find examples of identifying domain and range from a graph?

Khan Academy, an educational website founded by Sal Khan and centered around providing free mathematics education, has domain and range identifying exercises. Khan Academy also has numerous tutorial videos on how to find the domain and range of a function from its graph. IXL, an education technology company, has free domain and range related math examples on its website and allows users to keep track of their educational growth. IXL's SmartScore allows students to measure their progress in a particular subject. In addition to practice problems, Intmath.com details the methods used to find..

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What does "r squared" mean?

R-squared measures an investment security's performance based on a benchmark index for that particular type of security. With investing, a number closer to 100 delineates a security completely dependent on an index. For example, a stock with an R-squared value of 100 has a price that is totally dependent on the index's daily movements. An R-squared number of 0 for a security means the value is not determined by an index whatsoever. Fixed-income securities are indexed by T-bill rates. Equity values are based on the benchmark S&P 500.\nStatistics models do not necessarily have a "good"..

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How many vertices does a rhombus have?

A rhombus is a closed-plane figure that is shaped like a diamond. It is a parallelogram, and both pairs of opposite sides are parallel to each other. A rhombus has two diagonals. The diagonals of a rhombus bisect each other at right angles. The area of a rhombus is half the product of its diagonals. The sum of the four angles of the rhombus is always 360 degrees. The perimeter of a rhombus is the sum of all four sides of the rhombus, or four times the length of one side.

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How many faces does a pentagonal prism have?

The lateral faces sides of the prism are composed of rectangles. Prisms are named based on the shape of their bases. A pentagonal prism has pentagons as the top and the bottom. It is a right prism since the faces of the rectangles meet the base pentagon at right angles. It has seven faces, 15 edges and 10 vertices.

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What is a nonstandard unit?

Nonstandard units are typically used when initially introducing young learners to various attributes and concepts involving measurement. These concepts include more of and less than, measuring by laying objects end to end, sorting and classifying into categories according to size, comparing the lengths of two objects by using a third, describing objects in terms of relative size, and ordering objects by length.

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How can someone convert 350 milliliters to ounces?

By contrast, any quantity that is in fluid ounces can be converted into milliliters by dividing the quantity by .033814022. This process can be done easily with an online converter, which can be accessed for free through the Internet.It should also be mentioned that one fluid ounce is equal to 29.573529562 milliliters. So, any quantity that is in fluid ounces can be converted into milliliters by multiplying the quantity by 29.573529562. If the quantity is in milliliters, it can be converted into fluid ounces by dividing it by 29.573529562. Although, whether measurements are corresponding to th..

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