Book
Maths Puzzle
Log and Antilog
Problem: 2logx = 2 solve for x
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Book Other Question
It's a brilliantly sunny day. I'm 5'2" tall and my shadow is 6'.
The tree across the street's shadow is 18'. How tall is the tree?
The building across the other street is 30' tall . How tall is it's shadow?
How old is a bone that has lost 25 percent of it's carbon 14?
(The half-life of carbon 14 is 5,750 years)