The abacus is a basic mathematical computing device. It is still widely used today in Africa, Japan, Russia, China and other countries as a visual aid to facilitate the learning of mathematical concepts.
A:To calculate the mass of a specific number of atoms of an element, divide the number of atoms by 6.02 x 1023 and then multiply by the molar mass of the element. The process for calculating mass from the number of atoms is the same for all elements.
A:Changing square feet to square meters requires use of basic conversion where one square meter equals 10.76 square feet. Hence, one square foot equals approximately 0.093 square meters. A house that has 2,500 square feet is 232.5 square meters in size.
A:The common formula to find the area of an isosceles triangle is area equals 1/2 * base * height of triangle. The height is the line bisecting the two equal sides of the triangle and intersects the midpoint of the base.
A:There are many kinds of calculators, but most calculators have the same standard keys that allow users to complete a variety of calculations. The number keys and addition, subtraction, multiplication, division and equal signs are all very straightforward, but the functions of the other keys are not so well-known.
A:The word "term" is used in mathematical equations to describe either a single number, or numbers and variables multiplied together. Numerical terms are then grouped into expressions to come up with a definitive answer to the equation.
A:Two early counting devices were the abacus and the Antikythera mechanism. The abacus and similar counting devices were in use across many nations and cultures. The Antikythera mechanism hails from the Greek island of Antikythera.
A:The abacus is a basic mathematical computing device. It is still widely used today in Africa, Japan, Russia, China and other countries as a visual aid to facilitate the learning of mathematical concepts.
A:The formula to convert kilograms to pounds is pound = kilogram/0.45359237. Conversely, the formula is kilogram = pound x 0.45359237. One kilogram is equal to roughly 2.2 pounds, and 1 pound is roughly 454 grams.
A:A real world example of an absolute value function is any calculation in which the total depends upon simple addition of all the quantities in the function, regardless of sign. One example of such a calculation is the number of feet traveled by an athlete running around a race track.
A:When purifying a substance in chemistry, use (collected mass/starting mass)*100 to calculate percent recovery. This formula is also commonly stated as (pure product recovered/crude material used)*100.
A:Qualitative analysis is the scientific study of data that can be observed, but not measured. It is concerned with cataloguing the qualities of what is studied. Quantitative analysis is the study of data that can be measured, the quantities of a category of data. Each type of inquiry contributes important insights to scientific study that the other cannot.
A:A "factor by grouping" solver is a website that factors quadratic equations using the method of factoring by grouping. Rather than solving for the two values of x, factoring the quadratic equation provides a simplified equation.
A:Wire size calculators use metric measurements, but not imperial measurements. However, a chart is available to convert metric measurements to imperial measurements once the measurement has been calculated.
A:Some of the many games available for the TI-84 Plus C Silver Edition calculator include Flappy Bird Color, Snake, Frogger, Cheese Chase 2 and Sudoku. All of these games are available to download for free.
A:In order to use an online mixed number calculator, you must input at least two mixed numbers expressed as a whole number and a fraction. To generate a response, click the Calculate or other similar button, and then double-check the results.
A:A transformation sequence is any series of images that show a character's transformation from one thing to another. Usually it refers to a trope in anime or manga where a character transforms into a superpowered alter ego. There are examples in live action film and television, but they are few and far between.
A:The Casio HR-100TM features a printer, a 12-digit LCD display and two-color printing. With the key rollover feature and the ability to print two lines per second, this calculator helps save time and effort. The calculator also features important functions such as cost price, selling price, margin of profit, tax calculation and currency conversion.
A:Think Through Math offers a number of activities designed to motivate students in grades 3 and above to want to learn math, including games and theme-based contests. Students also have the ability to earn points that they can use to customize avatars and program dashboards or donate to charities.
A:To use front end estimation, round the left-most digit of each number to be added, and replace every other digit with zeros. Repeat this process for any numbers following the decimal point. This method is a quick way to roughly calculate the sum or difference of a series of numbers.
A:Find rounding calculators at HelpingWithMath.com, CalculatorSoup.com, MathWarehouse.com and TheCalculator.com. HelpingWithMath.com also offers instructions for rounding numbers manually, along with worksheets and matching cards to help students practice.
A:Free online payroll tax calculators are available at sites such as PayCheckCity.com and PayrollManager.com. Both of these sites provide fast and easy methods of computing payroll taxes for each state, along with other useful tools.