Math

Refine Search

Is every integer a whole number?

A whole number is one from the set containing zero and all of the positive numbers. A negative number, therefore, is not a whole number, but it is an integer. An infinite number of whole numbers also exists. Many numbers are both integers and whole numbers, but the negative numbers are only integers. Another classification of numbers, known as natural numbers, includes the same numbers as whole numbers, but without the zero.

Continue Reading

What shapes have no lines of symmetry?

A line of symmetry is a line that divides a figure into two corresponding parts, each of which is the mirror image of the other. The line of symmetry is also called the mirror line and can occur in any direction. Line symmetry is also known as reflection symmetry, mirror symmetry, mirror-image symmetry or bilateral symmetry. A line of symmetry occurs in two-dimensional objects, while a plane of symmetry occurs in three-dimensional ones.\nA triangle is a polygon with three edges and three vertices. Its angles always add up to 180 degrees. There are three main types of triangles that are classif..

Continue Reading

What are intermediate algebra rational expressions?

Some rational expressions with common denominators include: p/q + r/q = (p + r)/ q; and p/q – r/q = (p- r)/q. To solve them, a student adds or subtracts the numerators and puts the result over the common denominator. The answer must be simplified to the lowest form through division.\nThe rational expression ((y2- y)/y) x y/ (y2 – 1) can be simplified by multiplying and then dividing.

Continue Reading

What is the difference between rows and columns?

Spreadsheets are high-level computer programs that are used to store and analyze data. VisiCalc was the first spreadsheet program, and it was originally released for the Apple II personal computer in 1979. The spreadsheet is widely considered the first computer program that transformed the personal computer into a serious tool for business calculations and use. VisiCalc offered a small spreadsheet of only 254 rows by 63 columns, whereas contemporary spreadsheets can reach over 1 million rows by 16,000 columns.\nRows and columns are a convenient geometrical arranging tool to divide any data set..

Continue Reading

What are some examples of math problems for 2nd grade?

Counting in number sequences forces second graders to look at the numbering system in a fresh way and enhances their numerical skills. Numbers presented in different sequences, such as 3, 5 and 10, allow students to move from simple memorization to a deeper understanding of the concept of numbers. The ability to describe patterns of objects prepares students for more complicated number-pattern problems in later grades.\nAddition and subtraction lessons move from single-digit problems, such as 4 - 2 = 2, to three-digit problems as students learn placement. Identifying fact families is important..

Continue Reading

What the difference between statistics as numerical fact and statistics as a discipline?

The discipline of statistics covers several areas of science and industries, including the environment, health and epidemiology, computer science and astronomy. Statisticians may also work in education, engineering and in other non-science sectors such as business. Work is done primarily in an office setting, but they may also travel to sites to collect data to analyze later.\nStatisticians may work for government or in the private sector. Statistician positions generally require a graduate degree in mathematics or statistics, but some jobs may only require a bachelor's degree. Statistici..

Continue Reading

What is 2 times 4 square root of 2?

The first thing to do is get the square root of 2; this operation falls under exponents. This step consists of determining what number when raised to the 2nd power results in 2. The answer is 1.4142135623730950488016887242097.\nThe operation between the given numbers is multiplication. The flow of solving must be from left to right: 2 x 4 x 1.4142135623730950488016887242097, thus giving us the final product of 11.313708499.

Continue Reading

How do you calculate PSI?

Measure the force appliedUse an instrument such as a force gauge, spring scale or strain gauge. Make sure that the unit is in pounds. Convert the value if necessary.Measure the total area on which force is appliedMeasure the length and the width, and make sure that both values use the same unit, in this case inches, you can proceed to multiply them. Calculate the pressure in psiDivide the measured force (in pounds) with the measure area (in square inches).

Continue Reading

How is math used in technology?

The processors that power computers are able to perform calculations quickly, and the calculations are performed using Boolean algebra. People generally solve math problems using a base-10 number system. Boolean algebra relies on base-2 math, in which all numbers are represented using ones and zeros.\nIn addition to calculating basic math problems, however, computers also use Boolean logic. This logic, which is rooted in discrete mathematical principles, allows computers to solve problems that require making logical decisions. Boolean algebra and logic combine to make sophisticated devices; se..

Continue Reading

Does a rhombus have right angles?

There are many types of four-sided polygons, which are classified as quadrilaterals. This includes squares, rectangles, parallelograms, trapezoids and rhombuses. In some cases, a polygon can be more than one type of quadrilateral. A square fits the definition of both a rhombus and a rectangle. Furthermore, squares, rhombuses and rectangles are all parallelograms by definition.

Continue Reading
Showing 1511 to 1520 of 3956 (396 Pages)