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Where can you find help with algebra online?

AlgebraHelp.com contains lessons for basic algebra concepts such as equations, proportions, word problems, combining like terms, distribution, the FOIL method, exponents of numbers, exponents of variables, solving equations by factoring, completing the square, and the quadratic formula. Worksheets cover such topics as simplifying, multiplication, exponents, factoring, advanced equations, and graphing. In addition, AlgebraHelp.com has different calculators for help with solving and simplifying equations and expressions and graphing functions. Also included are math resources such as a prime num..

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What are the multiples of 48?

An integer is any whole number. Because there is an infinite number of integers, there is also an infinite number of multiples. One way to test if a number (x) is a multiple of 48 is to divide x by 48. If the quotient is a whole number, then x is a multiple of 48.\n\nIt can also be helpful to view multiples in their relationship to factors. In an equation A x B = C, A and B are factors of C, and C is a multiple of A and B. For example, when you look at 48 x 2 = 96, the number 96 is a multiple of both 48 and 2, while the numbers 48 and 2 are both factors of 96.

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What is the square root of 54?

One can verify that 7.35 and -7.35 are square roots of 54 by multiplying 7.35 by 7.35 or -7.35 by -7.35, which gives 54 to an accuracy of two decimal places. Most calculators can compute square roots, although calculating a square root without a calculator is a process of trial and error. One could begin by noting that 7 squared is 49 and 8 squared is 64, which implies that the square root of 54 is between 7 and 8.

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What is a 3x3 multiplication matrix?

To be added together, two matrices must have the same number of rows and columns. Two 3x3 matrices can be added together, but a 3x3 matrix and a 4x3 matrix cannot because they have a different number of columns. To add matrices, add together the numbers in the corresponding positions to create a new matrix.\nOne matrix can only be subtracted from another if the two matrices have the same number of rows and columns. To subtract matrices, subtract the numbers in corresponding positions, and use the results to create a new matrix.\nA single number that is multiplied with a matrix is called a scal..

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What is the hardest math problem?

The Riemann Hypothesis states that all non-trivial zeroes of the Riemann zeta function are complex numbers with real part 1/2. This is said to be useful in determining the distribution of prime numbers.\nThe P versus NP problem is a conundrum involving the determining of the amount of time to find a solution to a given problem versus the time it takes to verify that solution.\nFermat's Last Theorem states that x^n + y^n = z^n has no non-zero integer solutions for x, y and z when n > 2.\nAfter the death of Pierre de Fermat in 1665, his son went through his papers with the intent of publish..

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What are some tips for remembering business math formulas?

Many students find it easier to remember math formulas when they understand their structure. If you can't remember which quantity is on the top of a fraction and which is on the bottom, consider what effect increasing each quantity has on the result. For example, one business formula is ROE = NI/TE, where ROE means Return on Equity, NI means Net Income, and TE means total equity. Increasing NI causes ROE to increase, which makes sense. If you misremember the formula as ROE = NI/TE, it's easy to see that this formula is wrong, as it says that increasing NI would cause ROE to decrease...

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What is a real life situation that can represent a domain or range function?

Another possible example is using a calculator to divide two numbers: the function is the quotient of "n" divided by "m," the range is all real numbers such that "m" does not equal zero, and the output is all real numbers. The reason that the domain has the restriction that "m" cannot equal zero is because dividing by zero is undefined and would break the function.\nBeginning math students often confuse domain and range. A simple mnemonic device for remembering this is thinking about the domain name of a website. When someone wants to visit a website, they input the domain name into the addres..

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What does "mode" mean in mathematics?

The mode is a type of average that is used to gather information about a sample population of observed values, which is usually a list of numbers. A list is said to be bimodal if it contains two modes and multimodal if it has several modes. Other types of averages in statistics are the mean and median.

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How do you practice dividing decimals?

You can find tutorial videos online that have decimal division questions and answers, along with explanations of techniques for solving these types of problems. You may also be able to find online courses and worksheets with sample long division problems, which allows you to get some extra practice dividing decimals. You can also find online quizzes, which may be a valuable source of practice, since they can allow you to practice decimal division in a low-stress environment.\nIt may also be a good idea to keep a calculator nearby to check your answers while dividing decimals. With a calculator..

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How are arithmetic sequences used in daily life?

Arithmetic sequences, like many mathematical equations, require a basic set-up to allow problem-solving to begin. The first step in working towards a solution requires analyzing the situation to produce basic, preliminary information. When trying to find the maximum seating capacity of an auditorium, for instance, the process begins with determining the maximum number of seats that can be occupied in each row. Working row by row to count seats is a form of simple addition, performed in a series that leads to a total number of seats. Once the total is identified, the next step involves determin..

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