Suppose a shoe company estimates that its monthly cost is C(x) = 300x2 + 2002 and its monthly revenue is
R(x) = -0.52% + 900x2 – 500x + 400, where x is in thousands of pairs
of shoes sold. The profit is the difference between the revenue and the cost.
What is the profit function, P(x)?
A. P(x) = -0.52% + 120022
300x + 400
O B. P(x) = -0.52% + 600x2 – 700x + 400
c. P(x) = 0.52% – 600x² + 700x 400
O D. P(x) = 0.57% + 600.72
7000 + 400

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.

step-by-step explanation:

mean or average is 40.6

the 3rd on is correct

step-by-step explanation: