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What are some advantages and disadvantages of quantitative methods?

Quantitative methods are standardized, making them effective in comparing research findings with similar studies. Additionally, they allow researchers to summarize vast sources of data. Quantitative methods are reliable and valid because they employ prescribed procedures. They also eliminate bias in a study because they involve many cases and few variables, which prevent researchers from using subjects known to them. Quantitative methods enable researchers to correlate independent and dependent variables in order to determine causality within a study framework. Furthermore, these methods allow..

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What are some real-life geometric sequence examples?

In a geometric sequence, a term is determined by multiplying the previous term by the rate, explains to MathIsFun.com. One example of a geometric series, where r=2 is 4, 8, 16, 32, 64, 128, 256... If the rate is less than 1, but greater than zero, the number grows smaller with each term, as in 1, 1/2, 1/4, 1/8, 1/16, 1/32… where r=1/2. The only limitation on r is that it cannot equal zero.\nGiven the rate of travel, it is possible to apply this formula to determine the number of miles a vehicle travels in a given amount of time, and to calculate the distance at any time along the trip.\nPhy..

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How do you get percentages?

A common situation wherein knowing how to get percentages is helpful is when out shopping during a sale. For example, a sweater is originally $150 but has a 20% discount. To obtain the percentage, or the amount saved, the percent value is first divided by 100, making it 20/100, or 0.2. The answer is then multiplied by the original price: 0.2 X $150, giving an answer of $30 saved. This means the sweater is now only $120.

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What are the typical dimensions of a garage?

To determine the best overall dimensions for your intended use, there are several things to keep in mind. Sticking with the example of a two-car garage, are the cars compact cars or full size trucks? A good estimate for depth is 14 feet for an average car, 18 feet for a small truck or SUV and 20 feet for a full-size truck plus space for storage. A typical car is 6 feet wide. Providing enough room to open the doors on either side of the car requires the garage to be a minimum of 12 feet wide. For a small or full-size truck, the suggested width is 14 feet. If a two-car garage is planned, simply ..

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How do you find the magnitude?

Since most vectors are diagonal lines, finding the length might seem tricky. It is actually an easy process, and it can be done as long as at least one of the endpoints is known.Find the coordinates of the endpointsLocate the vector on the graph and determine the endpoints. Use just one set of endpoints or, if known, both sets. An example would be an endpoint of (4, -3) or two endpoints of (2, 1) and (-3, 2).\nUse the formula to calculate the magnitudeWhen two endpoints are known, the formula to find magnitude is √((x2-x1)2+(y2-y1)2). If only one endpoint is known, the formula is simply √..

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What does the symbol theta mean in trigonometry?

There are six trigonometric functions: sine, cosine, tangent, cosecant, secant and cotangent. When someone attempts to apply one of these functions to an angle, the theta symbol is used to denote the equation. The symbol is drawn next to the angle in question, and the person working on the trigonometry problem knows which angle to solve for. Alternatively, the phi symbol is sometimes used instead of theta.

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How do you measure irregular land acreage?

The first step, calculating the perimeter of the lot, can be the most difficult one, and may require sophisticated surveying equipment to complete. When considering dividing the resulting shape into triangles, remember that a four-sided polygon produces two triangles; a five-sided one, three. Next, name each triangle using a three-letter designation, such as ADE and EBC, with each pair of contiguous triangles sharing one letter marker.\nTo use Heron's formula, first recognize its appearance: the area of the triangle is equal to the square root of (S(S-a)(S-b)(S-c). In this case, A, B and ..

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What is the difference between CFM and SCFM?

Standard cubic feet per minute determines the weight of compressed air at 14.696 pounds per square inch, 60 degrees Fahrenheit and zero percent relative humidity. These are the conditions that occur at sea level. Even with so-called standard conditions, these measurements differ between the United States, Europe and other countries that use international units.\nCubic feet per minute indicates how much air is moved through the fan of an air conditioner, assuming the fan speed remains constant. Under theoretical conditions, if the fan remains constant, the same volume of air moves through the s..

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When are ratios used in real life?

Ratios are used to determine specific amounts of substances, such as the different coat colors of animals in a litter or their genders. Ratios are similar to proportions, which also compare two or more objects. Proportions, however, typically involved finding similarities between groups. Proportions may single out only one trait for comparison between groups, such as the difference in litter size between two litters of puppies.

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How do you find the cos inverse?

Find the lengths of the triangle's sidesThe cosine of an angle is the side adjacent to the angle divided by the right triangle's hypotenuse.\n\nMeasure or calculate the lengths of the relevant sides (adjacent and hypotenuse).Examine the ratioDivide the adjacent by the hypotenuse. This will give a fraction. Consider some of the properties of the cosine.\n\nIf both the adjacent and hypotenuse are positive, the angle is between 0 and 90 degrees. Some common fractions for cosines of angles in degrees are:\ncos(0)=1\ncos(30)=?3/2 so the inverse cosine of about 0.85 is close to 30 degrees;..

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