Polygon ABCD has sides with these lengths:AB, 5 units; BC , 4 units; CD,4.5 units, and AD 7 units, the slope of AB is 5, the slope of BC is 0.25, the slope of CD is -2, and the slope of AD is 0. The polygon is dilated from point A by a scale factor of 1.2 to form polygon A’B’C’D. Match the slopes and lengths of the sides of the polygon A’B’C’D to their values

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

the line of

∠cbe and ∠deb are same-side interior angles.

i took the test

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step-by-step explanation: