Understanding Proportionality and Similarity in Geometry
Two quantities, X and Y, are proportional if their ratio is constant: y / x = m (or equivalently, y = mx). In this case, the number m is called the constant of proportionality. The graph of the function relating two proportional quantities is always a straight line through the origin, represented by the equation y = mx.
Two figures are similar if they have the same shape, though different in size. Two conditions must be met for figures to be considered similar:
- The corresponding segments are proportional;
Preservation and Management of Clinical Records
Replacement Technologies
Currently, new technologies, such as digitization, are presented as a solution to avoid weeding microfilm when scanning documents. This attempts to solve file problems, especially space. However, keep in mind that the replacement of paper for other media (optical, magnetic, etc.) is only operational when applied to valuable documents. It is not applicable in the case of worthless documentation that will never be consulted.
If you want to perform a migration of these characteristics,
Read MoreSequences, Series, Limits, Continuity, and Derivatives in Calculus
Sequences
If a sequence fails to approach any single number, then it does not have a limit, or the limit is undefined.
Common Behaviors for a Sequence
- Approach a Limit L
- Jump around without settling anywhere
- Grow toward ± ∞
Ex/ 
Limit is 1
{1,-1,1,-1….} No limit.
(1,2,4,8,16….} Diverges to ∞ …no limit
- Diverging -> gets bigger, approaching infinity
- Converging ->to a limit.
If a series has a limit, we say it converges; otherwise, it diverges.
Common Limits
Series
Harmonic Series
–> Divergent;
Read MoreProbability vs. Non-Probability Sampling Methods in Research
Probability Sampling
In probability sampling, a random sample is used, where each basic element has a known probability of being selected in the sample.
Characteristics:
- Each element is randomly selected and has the same probability of selection.
- Error and confidence can be calculated.
- Results can be generalized.
- It is the only method that can evaluate the representativeness of the sample.
- It is more expensive than non-probability sampling.
- It is slower and more complicated.
Types of Probability Sampling:
Read MoreQuantitative Techniques in Business Decision Making
Quantitative Techniques
Quantitative techniques are defined as those statistical techniques which lead to the numerical analysis of variables, affecting a decision situation, and the evaluation of alternative strategies to attain the objectives of organizations.
Typewriters: Understanding Their Parts and Operation
Typewriters
A typewriter is a mechanical or electromechanical device with a set of keys that, when pressed, cause characters to be printed on a document, usually paper.
Electric Typewriters
In electric typewriters, the keys are used only to start the electric mechanism. The pressure used by the operator is much smaller than in conventional typewriters, and as a result, the operator can type faster with less fatigue. Another advantage is that each letter or pressure is uniform.
Parts of the Typewriter
- Row