Open Up - Grade 8 - Mathematics - Unit 7 - Lesson 14
By Formative Library
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Last updated over 2 years ago
10 Questions
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1.
Evaluate each expression. Use scientific notation to express your answer.
(1.5⋅10^{2})(5⋅10^{10})
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2.
Evaluate each expression. Use scientific notation to express your answer.
\frac{4.8⋅10^{-8}}{3⋅10^{-8}}
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3.
Evaluate each expression. Use scientific notation to express your answer.
(5⋅10^{8})(4⋅10^{3})
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4.
Evaluate each expression. Use scientific notation to express your answer.
(7.2⋅10^{3})\div(1.2⋅10^{5})
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5.
How many bucketloads would it take to bucket out the world’s oceans? Write your answer in scientific notation.
Some useful information:
- The world’s oceans hold roughly 1.4⋅10^{9} cubic kilometers of water.
- A typical bucket holds roughly 20,000 cubic centimeters of water.
- There are 10^{15} cubic centimeters in a cubic kilometer.
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6.
The graph represents the closing price per share of stock for a company each day for 28 days.
What variable is represented on the horizontal axis?
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7.
The graph represents the closing price per share of stock for a company each day for 28 days.
In the first week, was the stock price generally increasing or decreasing?
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8.
The graph represents the closing price per share of stock for a company each day for 28 days.
During which period did the closing price of the stock decrease for at least 3 days in a row?
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9.
Write an equation for the line that passes through (-8.5,11) and (5,-2.5).
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10.
Explain why triangle ABC is similar to triangle CFE.
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