B Ms. Liao runs a small dress company. From 1995 through 2005, the number of dresses she
made can be modeled by N(x) = 0.3x2 - 1.6x + 14, and the average cost to make each
dress can be modeled by C(x) = -0.001x? - 0.06x + 8.3, where x is the number of years
since 1995. Write a polynomial that can be used to model Ms. Liao's total dressmaking costs,
T(x), for those years.
The total dressmaking cost is the product of the number of dresses made and the cost per dress.
T(x) = N(x) - C(x)
Multiply the two polynomials.

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.

b mark me branliest thx

step-by-step explanation:

step-by-step explanation:

pi or 3.14159265359 is an irratinal decimal