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Author Question: A urine sample is diluted 1:4 before testing. Testing indicates that the concentration of protein ... (Read 42 times)

nevelica

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on: Jun 27, 2018
A urine sample is diluted 1:4 before testing. Testing indicates that the concentration of protein present is 10 g. What is the true concentration of protein in the urine?
 
  A) 2.5 g
  B) 10 g
  C) 20 g
  D) 40 g

Question 2

Consider the following expression. 9 - (-3) Which of the following expressions is another way of writing this?
 
  A) 3 + 9
  B) 3 - 9
  C) 9 + 3
  D) 9 - 3


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janeli1

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Reply #1 on: Jun 27, 2018
Answer to Question 1

D

Answer to Question 2

C


nevelica

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Reply #2 on: Jun 27, 2018
Thank you


janeli1

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Reply #3 on: Jun 27, 2018
No problemo


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