Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 McGraw Hill Glencoe - Answer Keys
Chapter 1 - Real Numbers; Lesson 7: Compute with Scientific Notation


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  Extra Practice  

Evaluate each expression. Express the result in scientific notation.

  • Question 17 (request help)

    \((3.7\times10^{-2})(1.2\times10^{3} =\)
  • Type below:
  • Question 18 (request help)

    \(\cfrac{4.64\times10^{-4}}{2.9\times10^{-6}} =\)
  • Type below:
  • Question 19 (request help)

    \(\cfrac{3.24\times10^{-4}}{8.1\times10^{-7}} =\)
  • Type below:
  • Question 20 (request help)

    \((7.3\times10^{5}) + 2,400,000 =\)
  • Type below:
  • Question 21 (request help)

    \((8.64\times10^{6}) + (1.334\times10^{10}) =\)
  • Type below:
  • Question 23 (request help)

    Persevere with Problems A circular swimming pool holds \(1.22\times10^{6}\) cubic inches of water. It is being filled at a rate of \(1.5\times10^{3}\) cubic inches per minute. How many hours will it take to fill the swimming pool?
  •    hours
  • Question 24 (request help)

    Financial Literacy In 2010, the national debt of the United States was about 14 trillion dollars. 

    In 2003 it was about \(7\times10^{12}\) dollars.

    About how many times larger was the national debt in 2010 than in 2003?
  • About   times

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