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: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: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 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: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: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: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: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: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: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:Calculating man hours involves determining how much time a project requires and how many employees are needed. The process can be completed before or after a project, and this example determines man hours after a project's completion. The calculations take a few minutes and require a calendar and a calculator.
A:200 degrees Celsius is equal to 392 degrees Fahrenheit. There is an easily memorable formula for Celsius to Fahrenheit conversions: simply multiply the original figure by 9, divide by 5 and add 32. To convert the other way, just reverse the equation by subtracting 32, multiplying by 5 and dividing by 9.
A:Meta-Calculator and Alcula offer advanced calculators online. Meta-Calculator provides users access to graphing, scientific, matrix and statistics calculators. Alcula, however, provides one scientific calculator that supports many operators, functions and constants, such as trigonometric and statistical functions.
A:A calculator helps people perform tasks that involve adding, multiplying, dividing or subtracting numbers. For example, people use calculators to help them with their math homework, calculate income and expenses when filling out their tax returns, or work out how much to tip a server in a restaurant.
A:Divide the year by 100, drop the decimals and add one. Adding one is necessary because the year 1 is considered the first century, so the year 101 is the second, and so on.
A:The equivalent of 176 pounds is 80 kilograms. Because 1 kilogram equals approximately 2.2 pounds, finding the equivalent in kilograms requires dividing 176 pounds by 2.2 pounds per kilogram.
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:There are many online resources that offer free metric converters, including Science Made Simple, Metric Conversions and World Wide Metric websites. These sites provide metric converters for length, volume, area and speed. At the Science Made Easy site, there are very useful length and height metric converters, such as millimeters to meters, inches to meters, centimeters to feet and centimeters to inches.
A:To use a square footage calculator to measure a room, first find its length and width measurements, either in feet or feet and inches. Input the measurements into the corresponding boxes of the calculator, and then hit Calculate. For example, using the calculator on Green Home Solutions' website, ghsproducts.com, a room 10 feet wide and 120 feet long has an area of 120 square feet.
A:The square root of 78 is 8.83 and can be found by using the radical function on a calculator. The square root formula for 78 can be expressed as 8.83 times 8.83 equals 78.