Math

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.

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    • How Are Quadratic Equations Used in Everyday Life?

      Q: How Are Quadratic Equations Used in Everyday Life?

      A: Quadratic equations govern many real world situations such as throwing a ball, calculating certain prices, construction, certain motions and electronics. They are most often used to describe motion of some sort.
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    • What Is a Linear Inequality Equation?

      Q: What Is a Linear Inequality Equation?

      A: A linear inequality is similar to a linear equation; however, where a linear equation has an equals sign, a linear inequality uses an inequality symbol. Inequality symbols include > (greater than), < (less than), ≤ (less than or equal to), ≥ (greater than or equal to) and ≠ (not equal to).
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    • Who Is the Father of Modern Algebra?

      Q: Who Is the Father of Modern Algebra?

      A: The man known as "the father of modern algebraic notation" was French mathematician Francois Viète, according to the math department at Rutgers University. His substitution of letters to mark unspecified or unknown number quantities is recognized as the beginning step in the creation of the algebraic system.
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    • How Many Pounds Are in 1 Kilogram?

      Q: How Many Pounds Are in 1 Kilogram?

      A: A kilogram is approximately 2.20 pounds. The kilogram is the base unit the metric system uses for mass. Beginning in July 1959, the internationally accepted standard for the avoirdupois pound became exactly 0.45359237 kg.
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    • Why Is Math Important in Life?

      Q: Why Is Math Important in Life?

      A: Math is important in life for its practical, everyday applications like cooking and baking, financing a home and providing the right tip at a restaurant. It is also used by professionals to solve problems.
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    • What Does Equation Mean?

      Q: What Does Equation Mean?

      A: The word "equation" is related to the word "equals" and generally describes a state of balance or equilibrium, according to Dictionary.com. Equations are commonly used in mathematics and chemistry.
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    • What Are Cool Math Games?

      Q: What Are Cool Math Games?

      A: A cool math game that is available online is "2048" and is offered as a mobile application. Cool Math 4 Kids offers math games geared toward children, including "The Timernator" and "Arithmetic Game."
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    • How Did Albert Einstein Come up With E=mc^2?

      Q: How Did Albert Einstein Come up With E=mc^2?

      A: Before Albert Einstein came up with his equation E=mc^2, the scientific world believed that mass and energy were two independent phenomena in the universe. However certain occurrences, such as radioactive emissions could not be explained by this divide between mass and energy. Einstein worked out the equation by assuming the speed of light was constant to provide the link which would later explain how stars worked as well.
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    • What Are Some Facts About the Abacus?

      Q: What Are Some Facts About the Abacus?

      A: The abacus is a counting frame used since ancient times as a calculating device. The word abacus is derived from the Greek word "abax" meaning "flat surface."
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    • How Big Is a Stack of One Trillion Dollar Bills?

      Q: How Big Is a Stack of One Trillion Dollar Bills?

      A: A stack of one dollar bills equals $100 and measures .43 inches high, which means that $1 trillion dollar bills would stack to a height of approximately 67,866.16 miles. The moon is about 238,855 miles from the Earth, which would require a stack of $3.5 trillion dollar bills to reach.
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    • In Mathematical Terms, What Does "factor" Mean?

      Q: In Mathematical Terms, What Does "factor" Mean?

      A: A factor is a number or expression that divides another number or expression evenly without a remainder. For instance, two, four, five and 10 are factors of 20 because 20 can be divided by all those smaller numbers an exact number of times. Prime numbers are positive integers greater than one that have exactly two factors. A composite number has more than two factors.
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    • What Is a "digit" in Math?

      Q: What Is a "digit" in Math?

      A: "Digits" are the symbols or characters used to represent a number visually. A number like five contains one digit, whereas a number like 555 contains three digits. This is easily seen when they are written as numerals: 5 versus 555.
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    • What Is the Precise Definition of a Limit in Calculus?

      Q: What Is the Precise Definition of a Limit in Calculus?

      A: The definition of a limit in calculus is the value that a function gets close to but never surpasses as the input changes. Limits are one of the most important aspects of calculus, and they are used to determine continuity and the values of functions in a graphical sense.
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    • How Many Millimeters Equal 1 Meter?

      Q: How Many Millimeters Equal 1 Meter?

      A: One thousand millimeters is equal to 1 meter. The meter is the standard unit of length in the International System of Units, also known as the metric system. "Metre" is the standard spelling for all English-speaking countries except the United States. "Meter" is the accepted U.S. spelling.
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    • How Is Calculus Used in Medicine?

      Q: How Is Calculus Used in Medicine?

      A: According to class notes from Bunker Hill Community College, calculus is often used in medicine in the field of pharmacology to determine the best dosage of a drug that is administered and its rate of dissolving. Usually, the drug is slowly dissolved in the stomach.
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    • How Is the Class Midpoint Calculated?

      Q: How Is the Class Midpoint Calculated?

      A: The class midpoint, or class mark, is calculated by adding the lower and upper limits of the class and dividing by two. The class midpoint is sometimes used as a representation of the entire class.
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    • How Are Logarithms Used in the World?

      Q: How Are Logarithms Used in the World?

      A: A few examples of how logarithms are used in the real world include measuring the magnitude of earthquakes or the intensity of sound and determining acidity. A logarithm explains how many times a number is multiplied to a power to reach another number. It is expressed as loge(x) and is commonly written as ln(x).
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    • What Is a Nonlinear Function in Math?

      Q: What Is a Nonlinear Function in Math?

      A: A nonlinear function in math creates a graph that is not a straight line, according to Columbia University. Three nonlinear functions commonly used in business applications include exponential functions, parabolic functions and demand functions. Quadratic functions are common nonlinear equations that form parabolas on a two-dimensional graph.
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    • How Is a Tally Chart Made?

      Q: How Is a Tally Chart Made?

      A: To make a tally chart, single lines are drawn next to one another until reaching five, where the fifth line crosses the four other lines diagonally. This is a simple charting method that can be used quickly for surveys or other needs.
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    • What Are the Names of Graphs?

      Q: What Are the Names of Graphs?

      A: Several types of graphs are used for displaying information in mathematics including the bar graph; pie chart or circle graph; histogram; stem and leaf plot; dot plot; scatter plot; and time-series graphs. The type of graph chosen depends on whether the data is quantitative, qualitative or paired.
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    • Why Are Points Connected in a Line Graph but Not in a Bar Graph?

      Q: Why Are Points Connected in a Line Graph but Not in a Bar Graph?

      A: A line graph is a graph that charts the relationship between two variables or a progression of a single quantity through time. Without the lines connecting points of data, it would be difficult to make sense of the data being presented if there was no overall trend between the dots. A bar graph, on the other hand, is meant to compare two or more statistics, such as population figures.
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    • What Are the Advantages and Disadvantages of a Graph?

      Q: What Are the Advantages and Disadvantages of a Graph?

      A: The primary advantage of using a graph or chart in a presentation is that they help the audience to visualize the point of the presentation. Graphs emphasize the main point, make the data more convincing, provide a compact way of presenting information and help audiences stay engaged. Disadvantages of graphs include being time consuming to construct and costly to produce. They also require technology that some may lack.
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    • How Does a Graph Help People Interpret Scientific Data?

      Q: How Does a Graph Help People Interpret Scientific Data?

      A: Graphs of various types provide convenient visual representations of scientific data that would otherwise be presented in intimidating blocks of text or a series of numbers. Graphs represent statistics such as changes over time, comparisons, or parts of a whole. Graphs can be used to make date more accessible to both scientists and laypersons.
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    • What Is a Segmented Bar Graph?

      Q: What Is a Segmented Bar Graph?

      A: A segmented bar graph is similar to regular bar graph except the bars are made of different segments that are represented visually through colored sections. A segmented bar graph is sometimes known as a stacked bar graph, and it offers greater detail about data sets.
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