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The fossil record is testament to extinct fauna no longer present on earth. certain areas of the planet have always had high species diversity (evidence from fossils and catalogs of current species diversity).
asked
Jun 21, 2019
Biology
high-school
1
answer
1
vote
34.9k
views
The equation for the circle is: X^2 + y^2 - 12x + 6y - 19 = 0 What is the center of the circle? A. (-6, 3) B. (12, -6) C. (6, -3) D. (-12, 6)
asked
Oct 25, 2018
Mathematics
high-school
1
answer
4
votes
228k
views
A triangle has two angles measuring 90 and 50, calculate the third angle of the triangle. A) 50 B)40 C)45 D)75
asked
Jun 19, 2018
Mathematics
high-school
2
answers
5
votes
159k
views
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