Open Up - Grade 8 - Mathematics - Unit 7 - Lesson 12
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Math
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4 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is larger: the number of meters across the Milky Way, or the number of cells in all humans? Some useful information:The Milky Way is about 100,000 light years across.There are about 37 trillion cells in a human body.One light year is about 10^6 meters.The world population is about 7 billion.
There are more meters across the Milky Way.
There are more cells in all humans.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Ecologists measure the body length and wingspan of 127 butterfly specimens caught in a single field. What does the slope of the line tell you about the wingspans and lengths of these butterflies? (Short Answer)
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Diego was solving an equation, but when he checked his answer, he saw his solution was incorrect. He knows he made a mistake, but he can’t find it. Where is Diego’s mistake and what is the solution to the equation?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
The two triangles are similar. Find x.
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