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Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?
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Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?
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Square root of 1518.55 divided by 19...
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