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What is inverse variation?

Inverse variation is known as the opposite of direct variation. If there is an increase in one variable, the other variable decreases in proportion so that the resultant product remains unchanged. For example, a car travelling at 10 mph can cover 10 miles in an hour. If the speed of the car decreases to 5 mph, the number of hours it would take to cover the 10-mile distance increases to two hours.

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What is the "Nth" term in a mathematical equation?

To begin solving a problem using this mathematical equation, first determine the relationship between the known factors. For instance, what is the relationship between 3, 6, 9 and 12? \n\nIf the first term is three times one, the second term is three times two, the third term is three times three, and the fourth term is three times four, then the Nth term is 3n.\n\nUsing the sequence of the Nth term equals 3n, the fifth term would be three times five. So, the next factor in the sequence 3, 6, 9, and 12, is 15.

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Purpose of graphical presentation of data?

No matter the topic of the data presentation or the audience, graphs offer inviting and easily interpreted methods of explaining information. Even people who are intimidated by figures are usually able to look at a graph and determine the most important points in a short span of time.\nFor example, a person making a presentation regarding sales in various states across the country establishes the point of the presentation to the audience more quickly by using a color-coded map rather than merely stating the sales figures for each state. Observers quickly determine which states are ahead and wh..

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What is three squared?

Similarly, the square of 4 is written as 4^2 = 4 x 4, which gives 16. The square of a negative number is a positive number. Hence, (-3) x (-3) is also 9. Similarly, (-4) x (-4) is also 16.\nThe square of fractions can also be obtained in the same manner. The square of ¾ is written as (¾)^2 = ¾ x ¾ = 9/16. The square of (-¾) is written as (-¾)^2 = (-¾.) x (-¾) = 9/16.

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How do you find the perpendicular bisector of a triangle?

Measure a sideFind the length of a side of any triangle using a ruler. You need this value to find out where the midpoint lies on that side.Find the midpointDivide the side's length in half. From an endpoint of the same side, measure that half-length and mark it. That is the midpoint of the side.Construct the perpendicular lineDraw a line that forms a 90-degree angle with the side of the triangle and passes through its measured midpoint. Use a protractor to ensure that the angle you're creating is a perfect right angle. This line is the side's perpendicular bisector.Find the per..

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What is a good idea for a statistics project?

Two very different distributions may have the same mean or standard deviation. Investors have been concerned with owning investments that possess "fat tails," or higher than normal frequencies of outcome at both ends of an investment's distribution. Constructing a model portfolio based on distributions that complement each and observing the portfolio's performance in real markets are excellent ways to practice methods for building and analyzing statistical distributions of different asset returns. Adjusting the portfolio as distributions change over time provides insight into the mec..

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What is the perimeter of a triangle?

When three sides of a triangle are all equal, the shape is called a equilateral triangle. The perimeter of an equilateral triangle, which has each side length equal to A, has a perimeter equal to (A + A + A), or 3A.For any polygonal shape, the perimeter is given as the distance around its outer sides. A square, which has four sides with lengths each equal to Y, has a perimeter equal to 4 x Y. Similarly, a rectangle, which has two sides equal to R and the other two equal to S, has the perimeter of (2 x R + 2 x S).

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Is 89 a prime number?

Prime numbers are a special group of numbers that have no factors other than one and themselves. A factor of a number refers to any number that can be divided into a number to yield a whole result. For example, four is a factor of 12 because 12 divided by four works out evenly to yield three.

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What is the intersection of two lines called?

When two lines lie in the same plane they are called coplanar lines. There are only two possibilities for two distinct coplanar lines; either the lines intersect or are parallel lines. Two lines lying in the same plane can have only one point of intersection. Lines that do not lie in the same plane are called skew lines.\nA line is a set of infinite points. It has no thickness or width but has infinite length. It is represented by taking any two points on the line or by assigning a small letter such as line l or line m.

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What is 85 percent of 352?

For example, 85 percent would become .85. Next, multiply this decimal and the other number. In this case, multiply .85 and 352. Plug this problem into a calculator, or solve it by hand. If solving by hand, calculate 352 times 85 to come up with 29,920. Then, move the decimal two places to the left, because .85 has two numbers after the decimal place. The final answer is 299.2.

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