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Which set is closed under the operation multiplication? A. {0, 1, 2} B. {1, 2} C. {1} D. {1, 2, 3}
answered
May 20, 2018
Mathematics
middle-school
7
votes
58.6k
views
Which equation is one way to represent 9/4
answered
Apr 27, 2018
Mathematics
middle-school
6
votes
166k
views
Explain the difference between prime and composite numbers
answered
Aug 17, 2017
Mathematics
middle-school
3
votes
32.2k
views
What feature do plants have that provide structure and form? A. Plants have an exoskeleton, like insects. B. Plants have an internal skeleton of bones. C. Plants have rigid tubes made of cellulose. D.
answered
May 16, 2017
Biology
high-school
3
votes
49.6k
views
The damp soil within a forest in which a mushroom grows is a...? Habitat ? Ecosystem? Community? Population?
answered
May 16, 2017
Biology
high-school
2
votes
170k
views
What system maintain the pH of human blood at very near 7.4?
answered
Jan 10, 2017
Chemistry
high-school
1
vote
72.7k
views
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