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What would be the radius of a circle with a diameter of 8 inches?

The radius of a circle is defined as any line segment that connects to the center point of a given circle. The diameter, on the other hand, is any line segment that passes through the center point of a circle, extending from one end to the other. The diameter of a circle is always twice as long as a radius.

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What is number and word notation?

Often used in media publications, such as newspaper or magazine articles, number and word notation makes for easier reading and comprehension of large numbers. It is much more concise to write the words "two billion" or "2 billion" instead of 2,000,000,000.Standard notation is initially taught when children first learn how to write numbers. That is numbers only, such as 1,000 or 7,600,000. When teaching students how to write in number and word notation, the first step is to note the significant numbers. Follow those numbers by the words notating their place value. If there are two significant ..

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What is two to the fourth power?

When a number is raised to the power of another number, it means that the original number is multiplied by itself the number of times of the power.\nFor example, two to the power of four is solved by multiplying two by itself four times. If the original number is a negative number, the entire negative number is multiplied by itself. Thus, if the problem is now negative two to the power of four, (-2) would be multiplied by itself four times, which is still equal to 16.\nIt should be noted that negative numbers with an even power will output a positive value, and negative numbers with an odd pow..

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How do you use the order of operations in algebra?

For example, take the expression (3x + 5) - 2 * (4x)^2 + 15. To start, solve the (4x)^2 to 16x^2, and multiply it by 2, giving you 32x^2. The expression is now (3x + 5) - 32x^2 + 15. The expression has been simplified as far as it can be; expressions in parentheses like the 3x + 5 are considered single terms because they cannot be simplified without knowledge of the variable's quantity.\nIf the parenthetical expression had been (3 + 5) without the x, it could have been reduced to 8, but only like terms can be added or subtracted. Other terms are multiplied or divided. If a number is immed..

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What were Euclid's contributions to mathematics?

According to Infoplease, Euclid was a Greek mathematician who taught in Alexandria during the fourth century and made a number of different contributions to mathematics, especially pertaining to the field of plane geometry, which deals with flat two-dimensional objects and their properties. He also wrote about fields as diverse as solid geometry, arithmetic, number theory, and optics.\nEuclid also contributed a methodology through which mathematics could be presented in a deductive way. This included bringing such words into the modern mathematical vocabulary as points, lines, assumptions and ..

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What is a non-real number?

No real negative number can have a negative square root, because even a negative number multiplied by itself produces a positive product. Real numbers are those numbers that represent a quantity along a number line, including all positive and negative numbers and zero. Irrational numbers, even though they cannot be expressed as a precise fraction or decimal, are considered real numbers because they do exist at some place on the number line, even if that place is not precisely defined.

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How Many Vertices Does a Cylinder Have?

A vertex is where two lines intersect. It is otherwise known as a corner. A triangle, for example, has three vertices while a square has four. Three-dimensional objects tend to have more vertices than do two-dimensional figures because they have more corners than their two-dimensional counterparts. A cube, for example, has eight vertices, and a triangular prism has six.

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What are some common uses for vertical line graphs?

When the x axis of a graph is defined as the price of a particular product being sold and the y axis of the same graph is defined as the total amount of the product that has been sold, the resulting graph will be a vertical line if the price of the product does not change. The Vertical Line Test is an application of vertical line graphs that allows mathematicians to determine if a particular graph is a function or not; if the graph passes through any possible vertical line more than once, it is not a function.

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What is the formula to calculate average?

The average is also called an arithmetic mean. It is used to describe the best estimate of a single number for a group of numbers. Other terms used to describe groups of numbers are median and mode. The mode is the number that shows up frequently in the sample while the median is the middle number if the sample was arranged in numerical order.

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What is the cube root of 512?

When a number is cubed, it is multiplied by itself three times. For example, two cubed is equal to 2 x 2 x 2, or eight. Also, three cubed is equal to 3 x 3 x 3, or 27. Similarly, eight cubed is equal to 8 x 8 x 8, or 512. The cube root is the value that must be cubed to equal said number. It can be found by multiplying the number to the power of one-third.

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