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What are some examples of numerical figures?

In modern English, the characters 0 through 9 are used as numeric symbols. Numeric symbols express given quantities without explicitly writing out the numbers' names in letters. The English numeric characters are called Arabic numerals because they passed into English usage via Arabic mathematicians.\nOther languages use different characters for numerical figures. For example, in Hebrew, Latin and Greek, the letters of the alphabet can be used as numerals. For example, in the Roman numeral system used by Latin, "V" means "5" or "five."

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What is a function in math?

One example of a function is the relation between x (any real number) and twice that number, or 2x. The function would then be written with the notations f(x) (read "f of x" or "function of x") and 2x (the function itself). It would be written as f(x)=2x. For the input 3, the output would be 6, which is 2 times 3. For the input -3, the output would be -6, and so forth.

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What is the square root of 85?

The square root of a number is a number that can be multiplied by itself to equal the original number. For example, the square root of 81 is 9 because 9 x 9 = 81. Square roots can also be expressed as a negative number because a negative times a negative equals a positive. The square root of 81 can be expressed as -9 because multiplying -9 by -9 equals 81. A number is a perfect square if its square root is a whole number. The numbers 4, 16, 25 and 36 are considered perfect squares.

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What is a list of perfect squares?

An example of a perfect square is 144. This number is the result of 12 squared, or the multiplication of 12 times 12, so finding the square of the figure is performing the reverse equation. In this case, 144 can be divided by 12 to give the same answer of 12. Just as subtraction is the inverse of addition and division is the inverse of multiplication, discovering the square root is the opposite of squaring.\nPerfect squares are rare due to the requirement of a number having to be squared. Every number can be squared, but most do not result in a whole number. For example, 18 is not a perfect sq..

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What is the name of a 10-sided polygon?

A polygon is a two-dimensional plane figure with straight sides. These sides or segments do not intersect at any point. The parts of a polygon include the side, vertex, diagonal, interior angle and exterior angle. Its three types are regular, equilateral and equiangular. If a plane figure is a regular polygon, it is also equilateral and equiangular. Curved shapes are not considered as polygons.

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What do you use decimals for in everyday life?

Every time someone buys an item and makes change, they are working with decimals. In addition many stores price items at $1.99, or similar, because $1.99 seems like less money than $2. This is because people consider the number on the left side of the decimal to be more important.\nDecimal numbering, which is numbering based on sets of 10, came from ancient civilizations such as the Romans'. Today Arabic numerals are more commonly used then Roman numerals, but they still use decimal numbering. In 1616, John Napier, a Scottish mathematician, suggested that decimal numbering could be used t..

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How many people die on roller coasters each year?

The chance of acquiring a fatal injury at a theme park is 1 in 1.5 billion, as of 2014. This number is extremely low due in part to safety measures such as daily inspections of rides and proper restraint systems. The restraint systems keep riders safely positioned throughout the ride and include either an over-the-shoulder harness system or a lap belt. Each roller coaster also has its own age, weight and health restrictions that should be followed to ensure individual safety.

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What does 3 mean?

In mathematics, 3 is a member of the set of natural numbers, {0, 1, 2, 3, 4, 5, ...}, which can be constructed using the Peano axioms.\nThe Peano axioms begin with the statement that zero is a natural number and continues by stating that every natural number has a successor, which is also a natural number. Since zero is a natural number, its successor, denoted S(0), is also a natural number. Also, since S(0) is a natural number, S(S(0)) must be a natural number as well. Continuing in this fashion creates a set {0, S(0), S(S(0)), S(S(S(0))), S(S(S(S(0)))), S(S(S(S(S(0))))), ...}.\nSince this no..

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How many meters are in one dekameter?

The metric system includes units for mass, distance and time. The dekameter is one of many length units based off the meter. Length measurements can be used to measure length, area or volume. The most common metric unit for measuring area of large areas of land are hectares. There are 100 square dekameters in a hectare. The most common metric for volume is cubic meters. There are 1,000 cubed meters in a single cubed dekameter.

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What does Pi equal in algebra?

Pi is known as an irrational number. When calculated, its decimal places are unending, and the numbers have no pattern of repetition. Therefore, it cannot be described as a ratio of two integers. The ancient Greek mathematician Archimedes is believed to be the first to calculate pi, which bears the same symbol as the 16th letter of the Greek alphabet. In 1882 German mathematician, Ferdinand von Lindemann, proved that pi was transcendental, meaning it's not the root of any equation that had rational numbers for coefficients. His work finally proved that it's impossible to square a cir..

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