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Convergence articles

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To find three quantities x.y, and z...
Find the greatest value of y in the equation a4 x2= (x2 + y2)3.
A boy gives 11 coins of equal denomination to a man, and the man finds that their total value in yen is 4 less than his age.
A man is walking across a bridge, when a boat passes under the bridge.How rapidly are the boat and the pedestrian separating after the boat passes under the bridge?
The triangle ABC has a right angle at C. Show that 1/ED=1/AC+1/AB
The author presents five modules based on mathematics from medieval Islamic cultures for use in a variety of high school and college mathematics courses.
A certain bishop ordered that 12 loaves be divided among his clergy.
A tree is 20 feet tall and has a circumference of 3 feet. There is a vine that winds seven equally spaced times around the tree and reaches the top. What is the length of the vine?
Two men have a certain amount of money. The first says to the second, "If you give me 5 denari, I will have 7 times what you have left."
A survey of the use of technology in American mathematics teaching over the past 200 years.