Grade 8 McGraw Hill Glencoe - Answer Keys Answer keys Chapter 1 - Real Numbers; Lesson 5: Negative Exponents

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Grade 8 McGraw Hill Glencoe - Answer Keys

Chapter 1 - Real Numbers; Lesson 5: Negative Exponents

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Test Practice

Question 42 (request help)
The diameter of the average human cell is about \(4^{-4}\) inch. Which of the following expressions are equivalent to this diameter? Select all that apply.
- \(\cfrac{1}{4^{4}}\text{ in.}\)
- \(-\cfrac{1}{4^{4}}\text{ in.}\)
- \(\cfrac{1}{256}\text{ in.}\)
- \(0.00390625\text{in.}\)

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Question 43 (request help)
The table shows the values of different measurements in the metric system.

Select the correct answer to write each measurement as a power of 10.
Type below:

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Spiral Review

Evaluate.

Question 44 (request help)
\(10^{2} =\)

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Question 45 (request help)
\(10^{3} =\)

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Question 46 (request help)
\(10^{6} =\)

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Question 47 (request help)
\(10^{5} =\)

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Find each missing value.

Question 48 (request help)
\(0.003\times\text{_____} = 3\)
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Question 49 (request help)
\(0.079\times\text{_____} = 7.9\)
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Question 50 (request help)
\(0.00041\times\text{_____} = 4.1\)
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Question 51 (request help)
\(987\div\text{_____} = 9.87\)
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Question 52 (request help)
\(3,400\div\text{_____} = 3.4\)
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Question 53 (request help)
\(7,450\div\text{_____} = 745\)
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