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How do you find the midpoint?

Locate and plot the endpoints of the line segmentIf the line has already been graphed, follow the increments up from the origin point to find the first endpoint of the line segment. For example, assume the first endpoint is located at (3, 6). Then, locate the second endpoint, for example at (7, 9).Add the two x and y coordinates togetherAdding 3 and 7 gives you 10, and adding 6 and 9 gives you 15. Part of calculating the mean involves finding the total of the set of values.Divide the results by two to determine the midpointBecause you're comparing two sets of values and want to find the m..

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What is a unit rate?

Rates that use quantities other than one can be reduced to unit rates by creating a ratio. For example, if a person works 90 hours every three weeks, the rate of 90 hours in three weeks is equivalent to the rate of 30 hours in one week, written as "90/3 = 30/1." The unit rate is therefore 30 hours per week.

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How is the perimeter of a parallelogram calculated?

The perimeter of any polygon, not just a parallelogram, is equal to the sum of the length of the sides. A polygon by definition is a two-dimensional shape, contained in the same plane, constructed of straight lines, that has three or more sides. A parallelogram is a polygon but has exactly four sides, with each set of sides parallel and the same length.\nA parallelogram is easier to solve the perimeter for than many polygons because of the fact that parallelograms have two sets of equal sides. This allows for the simpler math solution of adding the width and the height and multiplying by two. ..

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What are some strategies for writing geometry proofs?

Other tips include initially thinking about the process in plain English before writing a precise Euclidian proof. After thinking about the main steps this way, focus on the details, and write down every single statement, even if it feels like common sense. Lastly, look for parallel lines, isosceles triangles and radii to infer new information about the problem.

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What are some ways to access large multiplication charts?

The 100-by-100 multiplication chart on NCalculators.com is interactive, displaying the multiplier and multiplicand that multiply to give any number on the chart when a visitor hovers over that number. For example, hovering over 24 in the 3 row results in the equation 3 x 8 = 24 appearing on the screen. Hovering over 105 in the 15 row causes 15 x 7 = 105 to appear. The numbers running along the top row and the left-most column of the chart appear in red; clicking on any of these numbers loads a smaller multiplication table for just the factors of that number.\nUnlike the chart on NCalculators.c..

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What compares a measurement to the real or accepted value?

Accuracy relates closely to precision but is not the same. A common example includes the use of a target and darts. Four darts, with even spacing, around the bull's eye are accurate, yet not precise. Two darts with relatively close spacing yet far from the center of the target demonstrate precision but not accuracy. Accuracy and precision involve all darts landing near the bull's eye.\nScientists often express accuracy by means of significant figures. Convention dictates that the accuracy of the measurement is within one-half of the last significant figure. The accepted value results..

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What is the formula for calculating acreage?

Similar formulas are used to calculate acreage from square yards and square meters. One acre is equal to 4,840 square yards and 4,047 square meters. If "Y" equals the number of square yards and "M" equals the number of square meters, then the related formulas for calculating acreage are A=Y/4840 and A=M/4047, respectively. To calculate square feet, yards or meters for use in these equations, multiply the area's length by the width.

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What is the significance of the number 21?

Biblical numerologists explain that during their 40 years of exile in the desert, the ancient Israelites staged 21 notable rebellions against God and His priests. In his Second Letter to Timothy, Saint Paul lists 21 sinful behaviors of wicked people. The final behavior, described in the third chapter, is inward denial of God's power.\nAn alternate analysis of 21 as used in the Bible ascribes positive qualities to the number. It is the product of three, representing the fullness of the Holy Trinity, and seven, the number of days described in the creation account in the Book of Genesis. Fro..

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What is the mathematical symbol for average?

"Mean" and "median" are both types of averages. "Mean" is when a group of numbers are added together, and then the group is divided by the number of items in the original group. The average of 13, 15 and 23 is 17 because the sum of the three numbers is 51. That number divided by 3, the number of items in the group, is 17. "Median," on the other hand, is the middle number in a group of consecutive numbers. The median of the list above is 15.

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What does "difference" mean in math?

A basic subtraction problem is made up of three parts: the minuend, the subtrahend and the difference. The minuend is the number which appears first in the problem. This is the number which is being subtracted from. The subtrahend appears second, and is the amount being subtracted from the minuend. The difference appears last, after the equals sign, and is the amount of space between the minuend and subtrahend.If the minuend is greater than the subtrahend, then the difference is always positive. If the minuend is less than the subtrahend, then the difference is always negative. In the order of..

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