Math

A:

A pentagonal prism has 15 edges and 10 vertices. It also has seven faces: two pentagons, which form its bases, and five rectangles for the sides.

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    • What Is the Procedure for Solving Equations Graphically?

      Q: What Is the Procedure for Solving Equations Graphically?

      A: To solve an equation in one variable graphically, first manipulate the equation to put it in the form f(x) = 0, where x represents the variable present in the equation. Then use mathematical software, a graphing calculator or graph paper to plot the line y = f(x). The solution to f(x) = 0 is the point or points at which the line crosses the x-axis.
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    • How Is Algebra Used in Real Life?

      Q: How Is Algebra Used in Real Life?

      A: The formulas of algebra are used every day in real life when distance needs to be determined, volumes in containers need to be figured out and when sale prices need to be calculated. When using a recipe and doubling it or cutting it in half, algebra is used to determine the exact amount of ingredients. Basic algebraic equations are used almost every day although people often do not realize it.
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    • What Is X Squared Plus X Squared?

      Q: What Is X Squared Plus X Squared?

      A: The sum of x² plus x² is 2x². The problem requires adding one x squared to one more x squared, which equals two x squared. Substituting 3 for x, 3² + 3² = 2(3²), or 9 + 9 = 18.
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    • How Do You Simplify Imaginary Numbers?

      Q: How Do You Simplify Imaginary Numbers?

      A: Imaginary numbers are typically simplified in the same way that expressions with the variable x are simplified, with the exception of the expression i^2, which has a value equal to -1. For example, the expression 2i + 8i can be simplified by writing it first as (2 + 8) * i, with the final expression written as 10i.
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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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    • What Is a Curved Line?

      Q: What Is a Curved Line?

      A: According to Dictionary.com, a curved line is a type of line that continuously bends without any angles. In the United States, the curve is often portrayed as a central angle measured using degrees.
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    • See More Algebra Questions
    • How Do You Multiply Fractions With Different Denominators?

      Q: How Do You Multiply Fractions With Different Denominators?

      A: To multiply fractions, multiply the first numerator by the second numerator and the first denominator by the second denominator. The product of the two numerators becomes the numerator in your answer, and the product of the two denominators becomes the denominator in your answer. When finished, always be sure to simplify your answer to its lowest term.
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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 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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    • Why Are High School Math Word Problems Important?

      Q: Why Are High School Math Word Problems Important?

      A: Math word problems are important for high school students because they help develop a conceptual understanding of the processes involved in arriving at solutions and enhance students' abilities to communicate mathematically. Word problems also may help students become more interested in math by showing how concepts they have been studying abstractly can be put to use in real-world situations.
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    • Who Created Numbers?

      Q: Who Created Numbers?

      A: The Babylonian society used a cuneiform method of writing that included numerical characters; this is the earliest-known form of numbers, meaning that, as far as humans know, the Babylonians created numbers. This system of numerical writing is about 5,000 years old, and it is a base-60 system as opposed to a base-10 system, which is what most humans use for counting and mathematics in the modern world. Time measurements, in which an hour consists of 60 minutes and a minute consists of 60 seconds, are one example of a sexidecimal, or base-60, numerical system that is alive and well in the modern world.
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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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    • See More Arithmetic Questions
    • 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 Do You Calculate the Midpoint Riemann Sum?

      Q: How Do You Calculate the Midpoint Riemann Sum?

      A: A Riemann sum is a method of approximating the area under the curve of a function. It adds together a series of values taken at different points of that function and multiplies them by the intervals between points. The midpoint Riemann sum uses the x-value in the middle of each of the intervals.
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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 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 Do You Calculate Bulk Density?

      Q: How Do You Calculate Bulk Density?

      A: To calculate bulk density, simply weigh the sample and divide its mass by its volume. Bulk density is commonly used when referring to solid mixtures like soil. Just like particle density, bulk density is also measured in mass per volume.
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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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    • See More Calculus Questions
    • 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 Numerical Data?

      Q: What Is Numerical Data?

      A: Numerical data is data that is expressed with digits as opposed to letters or words. For example, the weight of a desk or the height of a building is numerical data.
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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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    • When Do You Use a Bar Graph?

      Q: When Do You Use a Bar Graph?

      A: A bar graph is used to compare items between different groups and track changes over a period of time. Bar graphs are best used for changes that happen over a large amount of time instead of just months or weeks.
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    • How Is Data Turned Into Information?

      Q: How Is Data Turned Into Information?

      A: According to the BBC, data is transformed into information after being imported into a database or spreadsheet. Information is defined as a collection of facts or data, whereas data is defined as information organized for analysis or used to reason.
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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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