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How many tens are there in 100?

In mathematics, division is one of the basic arithmetic operations. The division sign is usually denoted by "÷" or the slash character "/."In the expression 100 / 10 = 10, 100 is called the dividend. The 10 following the division symbol is referred to as the divisor, while the 10 after the equal sign is the quotient. Another term that is also used in a division operation is the remainder. This value pertains to a number smaller than the divisor that cannot be evenly divided to obtain a whole number. In the above equation, the remainder is 0.

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How do you find the area of a semicircle?

Determine the radius\n\nMeasure the distance from the center of the circle of which the semicircle is part to its edge. This is its radius.\n\nFind r2Multiply the radius of the semicircle by itself. \nMultiply pi by r^2\n\nFind the product of pi, which is rounded to 3.14, and the square of the radius.Determine the area\n\nUsing the formula for finding the area of a semicircle, divide the product of the squared radius and pi by 2. If the radius of the semicircle is 2 centimeters, then the area is 1/2(3.14 x 2 x 2), or 6.28 square centimeters.

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What is the way to determine the volume of a water tank?

If the measurements are in feet, then the volume is given in cubic feet. For example, a rectangular tank that has a length of 6 feet, a width of 10 feet and a height of 3 feet has a volume of 6 x 10 x 3 = 180 cubic feet.To convert cubic feet to gallons, multiply the tank volume by 7.47. This can be used for both rectangular and cylindrical tanks.

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What is the highest level of mathematics?

Combinatorics studies the relationships between numbers with regard to patterns, such as those found in computer-generated algorithms. In many cases, combinatorics bleeds into other mathematical subjects, such as algebra and topology.Algebraic topology is the study of topological spaces using algebraic theory, while real analysis studies the relationship between points, such as connectivity and convergence. Hyperbolic geometry is a related subject that deals with the second and third dimensions.

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How do you measure a property's square footage?

There are parts of the home that shouldn't be included in the measurements. A room's ceiling must be a specific height in order for it to be counted. Both the attic and the basement should not be counted in the square footage of the home as well. In fact, in most instances, any part of the home that sits below ground level is not included in the measurements in determining square feet.\nAny additional buildings, such as a garage, shed or guesthouse should not be included in the measurements either. Instead, these buildings, which require a person to leave the main building in order t..

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What is the coefficient of area expansion?

Stricter definitions of area expansion define a pressure for the expansion coefficient because pressure may slightly alter the degree of expansion of a heated material. Expansion coefficients may also be defined at specific temperature ranges because of the nonlinearity of the expansion of materials in certain cases, such as when they undergo phase changes. For linear expansion, the coefficient is a constant value. Nonlinear expansion over a range of temperatures can be defined using a function of temperature, pressure and, in some cases, volume.\nTo obtain this expression, the infinitesimal c..

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What is the importance of statistics?

Businesses use statistics to find customer preferences, check the quality of products, market products, estimate costs and make decisions. Statistics help make mathematical theories more accurate. Economists use statistics to find the relationship between supply and demand, the relationship between imports and exports, the inflation rate, the per capita income, and the national income rate. Accountants use statistics to see how well a company is doing, discover trends and create projections for the next year. Bankers use statistics to estimate the number of people depositing money versus the n..

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What are some uses for RPI in sports?

A team's RPI is calculated using the team's winning percentage, the total winning percentage of the team's opponents and the total winning percentage of the opponents' opponents. The RPIs of college basketball and baseball use a slightly adjusted formula where home and road wins are weighted differently. While the RPI is only one factor used by the NCAA Selection Committee in college basketball, teams with the top 25 RPI scores are usually selected to enter the postseason.

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What is the formula for relative error?

Because of the formula, relative error is expressed as a percentage after multiplying the value by 100. These types of formulas are very important to workers, such as accountants, who have to keep track of a company's financial records. Relative error is often taught in algebra and has a formula similar to many others. Relative error is often referred to as percentage error.

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What are some real world examples of an obtuse angle?

An angle is the amount of turn between two straight lines that have a common end point or vertex. In geometry, there are five types of angles. An obtuse angle is greater than 90 degrees but less than 180 degrees. An acute angle is less than 90 degrees, A right angle is exactly 90 degrees. A straight angle is exactly 180 degrees, and a reflex angle is greater than 180 degrees. A full angle, measuring 360 degrees, may be considered a sixth type of angle. In these terms, another way of defining an obtuse angle is an angle whose measure is greater than a right angle and less than a straight angle...

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