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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  • Question 25 (request help)

    There are approximately 45 hundred species of mammals on Earth and \(2.8\times10^{4}\) species of fish. Fill in each box to make a true statement.

    There are more species of _____ than species of _____ on Earth. The difference in the number of species is _____.
  • There are more species of     than species of
    		    on Earth. The difference in the number of species is
    		   .
  • Question 26 (request help)

    Population density is a measure of how many people are living in a region. To calculate population density, divide the population of a region by the area in square miles. The table shows the approximate populations and areas of different countries.

    Sort the countries from least to greatest population density.

    Which country has the greatest population density?
  • The country that has the highest population density is    .

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  • Question 27 (request help)

    A cube measures 6.6 inches on each side.

    a. Find the area of one face of the cube.
  •     \(\text{in.}^{2}\)
  • Question 27 (request help)

    b. Find the volume of the cube.
  •     \(\text{in.}^{3}\)

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