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How do you find factors of a number?

For instance, to find the factors of 28, it is divided by numbers less than 28. Since 28 is an even number, 2 is a factor of 28. Similarly, 4, 7 and 14 also divide 28 exactly and do not leave a remainder, thus, the factors of 28 are 1, 2, 4, 7, 14 and 28. The numbers 2 and 7 are also prime numbers, so the prime factors of 28 are the numbers 2 and 7 only. Prime factors do not include any products of the factors, 4 and 14 in this example. The number 1 is not a prime number, and 2 is the only even prime number.\nIf the number that has to be factored is an even number, division should be started w..

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What do the Roman numerals "XXIX" translate to in English?

Roman numerals may be used up to three times in succession. When a letter of lesser value appears to the left of another letter, the smaller value is subtracted from the larger one. When a letter of equal or greater value appears to the right of another letter, the values are added. In the example "XXIX," XX indicates the number 20, and IX translates into nine, which is 10 minus one.

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How do I convert 2.5 to a fraction?

When putting a number into a fraction, it can be helpful to think of it in terms of pies. In the following example, Sally has been tasked with splitting 2.5 available pies up equally among a group of five people. A single serving is one-half of a pie. From working with the decimal portion of the fraction, Sally determined half of a pie (1/2) was available in addition to the two whole pies. Next, Sally must determine how many servings are available from the two whole pies to ensure there’s enough for everyone. Sally multiplied the whole numbers by the denominator (bottom half of the fraction)..

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What is the formula to calculate square feet?

The formula to calculate square footage varies based on an area's shape. For a triangle, the width of the base is multiplied by the height of a triangle. This figure is then multiplied by a half. If the base measures 4, and the height is 5, 4 is multiplied by 5 and then multiplied by a half, equaling 10 square feet.A parallelogram's square footage is determined by multiplying the base (a measure of width) times the height. A base of 10 and a height of 6 are multiplied together to yield 60 square feet.

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What is an area model?

A basic area model is a square or rectangle, with the width and height of the shape labeled with the corresponding numerals. While area models are commonly used to depict and determine the area of a space (hence the name), they can also be used to show fractions and percentages.

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How do you divide fractions?

Find the reciprocal of the second numberTo find the reciprocal of the divisor, flip the divisor so that the bottom number is on top and the top is on the bottom. If it is a whole number, write a "1" underneath it, and flip the numbers. Turn any mixed fractions into improper fractionsIf you have mixed fractions, turn them into improper fractions by multiplying the denominator with the whole number. Add the result to the numerator.Multiply using the reciprocalOnce you have found the reciprocal of the divisor, multiply the dividend with the reciprocal. To do this, multiply the two numerators, the..

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How do you write a linear equation?

Find the slope and the y-interceptPick any two coordinates on the line, and use them to find the slope (m) of the line. Take the ordered pairs of the coordinates (x1, y1) (x2, y2), and subtract y1 from y2. Subtract x1 from x2, and divide the difference between the y values by the difference between the x values to calculate the slope. Plug the slope into the basic point-slope form y = mx + b. Put one of the two ordered pairs into the equation as well, and solve for b, which is the y-intercept (the point where the line crosses the y-axis. Write the equation as y = mx + b, with your solutions fo..

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What is a rectangle?

Diagonal lines that are drawn through a rectangle from corner to corner are equal in width. A square is technically a rectangle with four equal sides. The dual polygon of a rectangle is a rhombus.\nThe word rectangle comes from the Latin word "rectangulus", which translates to "right angle". All rectangles have a length, width, perimeter and area. A rectangle is a special type of parallelogram, and a parallelogram is a special type of trapezoid.

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What are coplanar points?

A plane is a two-dimensional surface, and any shape, such a polygon, a curve or a straight line, that can be drawn in two dimensions is made up of coplanar points. Points can lie in more than one plane at a time if those planes intersect. If two distinct planes do intersect, they intersect along a single straight line.

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What is a horizontal asympote?

In algebra, a horizontal asymptote may be defined as a line defined by the formula y = L, where L is the limit of a curve's algebraic equation as its variable approaches infinity. Horizontal asymptotes are best understood in the topic on analytic geometry, where the figure can be viewed as a horizontal line where the algebraic curve does not touch, save for a particular set of points.\nTo better understand the concept of a horizontal asymptote, the curve must be allowed to approach infinity on both negative and positive ends of the coordinate plane. To calculate the value of L and therefo..

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