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What is qualitative data?

Qualitative data stems from the word quality and characterizes attributes or properties of an object. When comparing qualitative and quantitative data, a key difference is that quantitative data is measured in numbers. For example, qualitative data for a painting includes a description of the characteristics of the painting such as colors and the way it is painted. Quantitative data for the same painting includes measured data like its cost, which can be measured in dollars.

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What is the square root of 8 simplified?

Square roots are also referred to as radicals, and the general process for simplifying involves breaking the original value down into factors, paying special attention to any that are perfect squares, and then simplifying as much as possible. The square root of a number can also be found by using the square root button on a typical calculator.

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What is a math T-chart?

At the top of the chart, an "X" and "Y" are placed to represent the values for the variables of an equation, such as the linear equation y = 2x + 6. A student choose values for "x" like 0, 1, 2 and 3 to get corresponding values for "y" of 6, 8,10 and 12. Each value picked for "x" goes under the X column and the corresponding values for "y" go under the Y column. In this manner, the student creates a table of values which can then be plotted.

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What are some examples of Calculus 2 problems?

Calculus 2 covers topics on integration techniques, applications of integrals, parametric equations and polar coordinates, sequences and series, vectors and three-dimensional space. The integration techniques covered include integration by parts, which is crucial not only for success in the course but will be frequently applied in other courses. The challenging aspect of calculus 2 is that it requires the student to understand the techniques taught and to think about how to apply the techniques to problems. A student can easily remember the integration by parts formula, but the student must d..

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What is the cosine curve?

Cosines and Sines are graphs of trigonometric functions, and can be produced in degrees or radians. The sine function is similar to that of the cosine, but it starts at 0, heads up to 1 by ?/2 radians (90 degrees) and then heads down to -1. The natural cosine and sine curves describe the horizontal and vertical coordinates of a point on the unit circle in relation to the counter-clockwise distance along the circle to the point from a reference point of intersection between circle and the horizontal axis.

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What are the shapes of the faces of a triangular prism?

By definition, the bases of a prism are parallel, and the faces are flat. Any cross-section of a prism parallel to the base results in an identical triangle to the base. Objects with curved sides, including cylinders, are not prisms even though their bases are parallel. The volume of the prism is the area of the base multiplied by the height. Glass or acrylic prisms reflect and refract sunlight, separating it into the seven colors of the rainbow.

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How do you read a histogram?

Identify your variables.Check the horizontal and vertical axes for any labels that identify what your variables are. These are required in order to understand what is being graphed and make conclusions from the subsequent data. Determine your class interval.The class interval is the measure in units between two adjacent tick marks on the horizontal axis. In some cases, the class interval is 1. \nFind the corresponding quantity for the first range.For the first range, or class interval, follow the bar up to the height of the column. Follow the height of the column over to the corresponding tick..

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What are some different examples of integers used in daily life?

The term "integers" refers to all whole and negative numbers, including zero. When taking a physical inventory of supplies or merchandise in a store, stock quantities are noted using positive integers. If items have been sold or otherwise disposed of, the changes would be recorded as a negative integer. This helps store owners know when the inventory is low, so they can reorder more supplies. Similarly, in banking, when depositing or withdrawing $200, the change to the account is represented as either plus or minus $200.

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Does a rectangle have two or four lines of symmetry?

A square, on the other hand, has four lines of symmetry. It can be folded in the same way as a rectangle to achieve symmetry, and it can also be folded corner to corner for lines of symmetry. An equilateral triangle has a single line of symmetry, and other triangles, such as the scalene triangle, do not have any lines of symmetry. To test a shape for lines of symmetry, fold the shape along the middle in different directions to see where the sides and corners line up perfectly.

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How do you calculate depreciation in math?

Another version of the declining balance method is the double declining balance, which is calculated as the straight-line depreciation multiplied by 200 percent. The 150 percent declining balance method is calculated similarly to double declining balance, with the straight-line depreciation being multiplied by 150 percent.\nWith the straight-line method, depreciation is calculated by subtracting the salvage value from the original cost, and then dividing by the useful life of the item. The declining balance method and straight-line method are both useful for items of equipment that are used fa..

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