Arectangle is drawn so that the width is 3 feet shorter than the length. the area of the rectangle is 28 square feet. find the length of the rectangle.

  7 feet

Step-by-step explanation:

Assuming the dimensions are integers, we can look at the factors of 28:

  28 = 1·28 = 2·14 = 4·7

The last pair differs by 3, so can be the solution to the problem.

The length of the rectangle is 7 feet.

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.

answer: 414,377,008

step-by-step explanation:

just multiply it