Math

Refine Search

What are the different types of polygons?

A polygon is a two-dimensional shape. It is a shape that is made up of straight lines that are connected so there are no openings. If the polygon has angles that are equal to each other, it is considered regular. If the angles are not equal, it is irregular.A convex polygon has no angles that point inwards. If there is an internal angle that is greater than 180 degrees, then the polygon is considered concave. The lines of a simple polygon do not cross onto each other while those of a complex polygon do.

Continue Reading

How many factors are there of the number 18?

Begin a list of factors of a number by first listing the number along with the number one. This is because any integer divided by itself will always result in the number one. Next, test whether the number is divisible by two without a remainder, by three without a remainder and so on. For example, 18 divided by two is nine, and 18 divided by three is six. Attempting to divide 18 by four or five results in a remainder.\nSince prior calculations have already established that six is a factor of 18, there is no need to test for more factors.

Continue Reading

What is the principle of progression?

If the demand is increased too slowly, improvement is unlikely and if the demand is increased too rapidly, it may result in muscle damage or injury. Other important principles of training include:\nSpecificity - training must match a specific sporting activity\nOverload - fitness is improved by training harder\nReversibility - any adaptation as a result of training is gradually reversed when training stops

Continue Reading

How do I calculate the percentage of two numbers?

Determine what type of percentage is neededThe percentage between two numbers is either a percentage change, error or difference. Change is used when comparing any two numbers, error is used when comparing an exact value to an estimated value, and difference is used to compare an old value to a new value. For example, if comparing the price of an item in two separate shops, percentage difference is used.Subtract one value from the otherFor percentage error and percentage change, use the absolute value of the answer when subtracting one value from the other. For example, if milk is $4.00 in one..

Continue Reading

What is the formula for the area of a circle?

The approximate value of pi is 3.14. Pi is the ratio of a circle's circumference to the circle's diameter. If a circle has a radius of 5 inches, the area of that circle equals 3.14 x 5^2, or 78.5 square inches. The circumference is equal to pi times the circle's diameter. If the same circle is used, the diameter is equal to 10 (two times the radius), so the circumference equals 3.14 x 10, or 31.4 inches.

Continue Reading

How do you explain a triangular matrix and its use?

The determinant of a matrix is a specific number that can be calculated from any given square matrix. A square matrix, as the name suggests, has the same number of rows as columns. When calculating the determinant of a matrix, converting the matrix into a triangular matrix is the simplest way. This can be achieved by performing a series of row operations that transform the square matrix into a triangular matrix, and then the determinant of the matrix can be readily found from the product of the diagonal entries of the triangular matrix. The determinant of a matrix is an extremely important val..

Continue Reading

What is the different between nCr and nPr?

Probability math looks at the likelihood of something happening. Not all events have a predictable outcome, so someone uses probability to essentially predict the outcome. For example, if someone flips a coin, when the coin lands it will either be on the tails side or the heads side. Since there are only two sides of a coin, there is a 50 percent probability that the coin lands on heads, or a 50 percent probability that it lands on tails.

Continue Reading

What is a geometric line?

A geometric line can extend in both the "x" and "y'" directions, but it has no thickness itself, making it one-dimensional. If a line is altered to add a curved portion, it is no longer a geometric line. One additional type of line segment the ray, which has a start point but no end point since it extends infinitely.

Continue Reading

How do you turn a number into a percentage?

When using percentages in calculations, it is easiest to convert the number back to a decimal before completing the operation. The conversion involves moving the decimal point two places to the left and removing the decimal. To calculate a percentage of a total, multiply the total by the resulting decimal number. Unless the percentage is greater than 100, the resulting number is always smaller than the total.\nPercentages are useful in daily life. When dining out, the guideline for tipping is 18 to 20 percent of the total bill. People can calculate a 20 percent tip by multiplying the total of ..

Continue Reading

How do you read decimals?

Say the number to the left of the decimal point as a whole numberFor example, if the number is 3489.721, read the number 3489 as a whole number indicating place value by saying "three thousand, four hundred, eighty-nine."Use the word "and" to indicate the decimal pointAfter reading the number to the left of the decimal point, say the word "and" as a bridge between the whole number on the left side and the decimal fraction on the right side.Read the number on the right side as if it were a whole numberIn the example, 3489.721, read 721 as if it were a whole number with no decimal point by sayin..

Continue Reading
Showing 571 to 580 of 3956 (396 Pages)