Math

Refine Search

How many millimeters equal 1 meter?

While the definition of meter has changed over time, since 1983 the universally accepted International System of Units definition is "the length of the path travelled by light in vacuum during a time interval of 1/299,792,458 of a second."\nThe metric system is based on 10s, where each unit is 10 times larger than the previous one. A millimeter is equal to 0.001 of a meter since it's 1,000 times smaller than a meter.

Continue Reading

How do you approximate the mean of group data?

Analyze the dataLook at the values in the data table. Examine a single category's records. For example, if you are looking at a table of times at which races were completed, look at only the times logged for one event or possibly one athlete.Eliminate outliersFor many sets of data, there are some values that are too high or too low to be included when finding the mean, especially if there are many values in the data table.\n\nFor example, if you are looking for the mean race time for a group of high school athletes, you might eliminate the times that are much longer than the bulk of the o..

Continue Reading

What is mensuration in mathematics?

The area of a cube is obtained using the formula A = 4 x length squared. The volume of a cube is obtained using the formula V = length cubed.\nThe area of a cuboid is obtained using the formula A = 2 [lb + lh + bh] where l is the length, b is the breadth and h is the height of the cuboid. The volume of the cuboid is arrived at using the formula V = length x breadth x height.\nThe curved surface area of a right circular cylinder can be obtained using A = 2Ï€rh where h is the height of the cylinder and r is the radius of the base of the cylinder. The total surface area of the cylinder is obtaine..

Continue Reading

What does a cylinder look like?

The cylinder is a very common geometrical shape that is seen in everyday items such as garbage cans, canisters, rolled-up carpet, candles, spools of thread and paper cups. It generally has two circular ends, called bases, connected by a rectangular plane. The perpendicular distance between the bases, or the width of the encircling rectangle, is the cylinder’s height.

Continue Reading

What are the key properties of a geometric shape?

A point is a positional starting point with no dimensions. A line is the shortest distance between two points and is one-dimensional. A plane is two-dimensional and can be drawn on a flat surface. Examples include a square, triangle and rectangle. Solids, like spheres, are three-dimensional.\nTwo-dimensional shapes include polygons and curved objects. Regular polygons have straight sides which are the same length and angles with the same measurement. One example is the equilateral triangle, where each angle measures 60 degrees. Variations include the isosceles triangle, which has two angles th..

Continue Reading

How many 12" by 12" tiles do you need to fill a room that is 216 square feet?

One can also determine how many tiles are needed by finding the area of the tile in square inches and the area of the room in square inches. The area of the room is then divided by the area of the tile. There are also many online calculators that calculate how many tiles are needed in a given situation.

Continue Reading

Is the number 1 prime or composite?

One cannot be prime because it does not meet the criteria of being greater than one. Until the 1800s, the number one was considered prime, but the body of mathematical thinking changed to come in line with the fundamental theorem of arithmetic, which dictates that every number has a unique prime factorization. If one were considered prime, it would have to be included in the prime factorization of all numbers.

Continue Reading

What is the process for adding imaginary numbers?

Real numbers are rational or irrational numbers. An imaginary number is a number that can only be written as a real number multiplied by the imaginary unit, "i," which represents the square root of -1. For instance, in the imaginary number 9i, nine, a real number, is placed in front of the imaginary unit, "i."\nComplex numbers are numbers that can be written as the sum or difference of an imaginary number and a real number. In the complex number (4 + 8i), four is the real number and 8i is the imaginary number. To add two complex numbers together, add the like terms. For example, to add (7 + 5i..

Continue Reading

Are vertical angles congruent?

To be congruent means to be precisely the same in shape and size. The term originates from the Latin word "congruere," which means "to agree." Angles that are congruent have the exact same degree measurement, as is the case with vertical angles. To be considered congruent, angles do not need to point in the same direction or be on lines that are the same size; they only need to have the same degree measurement.

Continue Reading

How do I calculate percent deviation?

Compare your data to the standardIn many experiments or data-recording activities, you are given a standard or a theoretical outcome to expect from your data. For example, in a physics lab that calculates the acceleration of a falling object, it's known that acceleration due to gravity is 9.8 m/s^2. However, due to small errors in measurements of distance or time to fall, your calculated result might not be exactly 9.8 m/s^2.\n\nAfter you have concluded your experiment and your calculations, see how close your result is to the standard.Find the differenceFind the difference between your c..

Continue Reading
Showing 221 to 230 of 3956 (396 Pages)