What do the properties of polynomial addition mean? complete each statement. the closure property states that the sum of two polynomials is a . the commutative property states that changing the order of two or more terms the value of the sum. the associative property states that the way in which two or more terms are grouped in a sum the value.

The closure property states that the sum of two polynomials is a constant

✔ polynomial variable .

The commutative property states that changing the order of two or more terms  decreases✔ does not change  increases the value of the sum.

The associative property states that the way in which two or more terms are grouped in a sum
decreases ✔ does not change increases the value.

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.

$9.41

step-by-step explanation: