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Given the system of equations: a) Write the augmented matrix.   b) Use Gauss-Jordan elimination method to simplify the matrix to a reduced row-echelon form. Show your work! No steps shown – no credit given!   c) Write the solution set for the system of linear equations and check your answer.  

We start with 600 g of radioactive Proactinium-234. 10 hours later we have 200g. a) Find an equation for the amount of Proactinium-234 after hours.   b) How much do we have after 20 hours?   c) When will we have 450 g of Proactinium-234?  

Determine whether the two functions 

The nurse teaches a pregnant client about the presumptive, probable, and positive signs of pregnancy. The client demonstrates an understanding of the nurse’s instructions if they state that probable signs of pregnancy include (select all that apply):

A client comes in for a first prenatal visit at 10 weeks. The client tells the nurse that this is their fourth pregnancy. A first pregnancy ended in miscarriage at twelve weeks. A second pregnancy resulted in a 39-week viable male infant.  A third pregnancy resulted in 35-week twins and they are all living. How would the nurse record this client’s obstetric history using the GTPAL system?

An 18-year-old client comes in to see the health care provider suspecting that she may be pregnant. Upon further testing, she is discovered to be 14 weeks pregnant. She has a lot of questions, including the types of testing that are done in pregnancy as well as what vaccinations she might need. Which vaccinations are recommended during pregnancy [option1] and [option2]?

A patient in her first trimester tells the nurse that she “does not feel well.” Which possible symptom and explanation is the most serious? Hint: You need to think about the changes in pregnancy and determine which one listed below has the most serious ramifications.

Describe the difference between phonetics and phonology.

Describe the benefit of using a standard font or character set (Unicode font) that includes the IPA symbols on your computer. 

The way that speech or language varies based on characteristics including geography, language background, or ethnicity is called: