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How do you calculate percentages on a calculator?

To find the percent of a number, divide the percent by 100 and multiply the result by the whole. For example, to find 35 percent of 150, 35 divided by 100 equals 0.35 and 0.35 times 150 equals 52.5.\nTo find the whole when given the percent and the part, divide the percent by 100 and divide the part by the result. For example, to find 50 is 25 percent of what number, divide 25 percent by 100 which equals 0.25, then divide 50 by 0.25 which equals 200.

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What are the factors of 8?

The number 8 is a rational, even and positive integer. It is also referred to as a composite number, or a nonprime, since it is divisible by factors other than 1 and itself. The number 8 also contains the factor pairs of 1 and 8 and 2 and 4. Another related characteristic of the factors of 8 is that its distinct prime factor is 2, which is the prime number that divides 8 evenly.

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What did Sir Isaac Newton do with math?

These two men created or discovered calculus, but it was French scientists that perfected the method that the two men had put together. The different methods put forward by the two men were blended together to create what is used today after many years of clarification by other mathematicians.

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How is slope calculated using rise over run?

In mathematics the slope of a line is defined as its level of steepness. The slope is expressed most frequently with the letter M. The formula for finding the slope, or M value, is M = (change) Y divided by (change) X. The values derived from finding the differences in M are called points, which can then be graphed onto the plot. Slopes may have multiple points, but require at least two points to exist on a line. Slopes, unlike other variables in the equation, do not change. In addition to varying in number of points, slopes vary in type. They may have a negative or positive value, or have a v..

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How are matrices used in real life?

Matrices are common tools used by the science and research industry to track, record and display the results of research. In addition to applied science, matrices are also used in the basic sciences. For example, physicists use matrices to study optics, electrical circuits and quantum mechanics. The discipline of physics also uses matrices to calculate battery power outputs and resistor conversion of electrical energy into a more efficient form. Matrices are used to solve problems involving Kirchoff's laws of voltage and current. Computer science also relies heavily on matrices. Tasks suc..

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How do you draw a rectangular prism?

Draw the surface located in the foreground as a cube or rectangleUse the edges of the ruler to make 90-degree angles for the prism. Don't draw this in the center of the page, instead it should be toward the top or the bottom.Set the vanishing pointThe vanishing point is an imaginary point on the horizon. All lines in a perspective drawing converge toward this point, and the vanishing point is usually located at the center of view on the horizon. Draw light lines from each corner of the prism to connect to the vanishing point.Draw the visible surfaces of the prism that can be seen in the b..

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What is a cube root formula?

The cube root of 8 is 2, because 2 * 2 * 2 = 8. Eight is referred to as a "perfect cube" because its cube root is a whole number. For example, to find the cube root of 125, find its prime factors. Since 125 = 5 * 5 * 5, the cube root of 125 is 5.\nIf the number does not have exactly three equal prime factors, the cube root can only be expressed as an irrational number. So, the cube root of 15 is simply cube root 15.\nIf the number has three equal prime factors plus other prime factors, it is also an irrational number. For example, to find the cube root of 375, find its prime factors. 325 = 5 *..

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What is the square root of 175?

The square root of 175 can be simplified by factoring out the square root of 25, which is 5, and multiplying that by the square root of 7. However, the square root of 7 is an irrational number, so it cannot be written out fully in decimal and must be approximated.

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What is the difference between a circle and an ellipse?

If a person were to select any point along the perimeter of an ellipse, measured its distant from the first focus, then measured its distance from the second focus, he would find that the sum of the two measurements would be the same no matter what point he picked along the ellipse.\nIn a circle, the two focuses have the same value, so if he were to pick a random point along a circle's perimeter to measure as above, not only would the sum be the same, but the measurements that he took for each focus would also be the same. This would be true all along the circle, no matter what point he c..

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What are exponential function rules?

While there are many rules that govern exponential functions, there are several main rules used to dictate specific functions. One unique exponential function is e^x, where the growth rate of this function at x is exactly e^x. Another unique relationship occurs when any exponential function takes the form b^0. This function is always equal to one, provided that the value of b is not equal to zero.\nOther rules are more general. For exponential functions that take the form b^x+y, their value is equal to (b^x)(b^y). For functions of the form b^xy, their value is equal to (b^x)^y. Similar to this..

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