Without graphing, classify each system as independent, dependent, or inconsistent. { -1-y=7, 5x-5y =5

In standard form, your equations are

These equations are independent.

_____

Many forms of solution of linear equations are simpler when starting from standard form. For the purpose here, that form helps you see whether the coefficients are multiples of each other (they're not), which would indicate the system is dependent or inconsistent.

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.

19

step-by-step explanation: