09/23/24
Stat/probability question
Suppose there is an intersection in a street where crossing diagonally is allowed. The four corners form a square and there is a person at each of the four corners. Each person crosses randomly in...
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09/22/24
Finding areas the dog can wander.
A dog is tied to the corner of a square hut by a rope which is 8m long. The hut measures 6m on each side. What is the area the dog can wander outside the hut?
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09/22/24
Why AC factoring works?
AC factoring can be used to factor quadratic equations. Why does it work?
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09/22/24
Geometric sequence
How many geometric sequences of two or more positive integers begin with 1 and end with 1024?
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09/22/24
Finding sum of reciprocals
The sum of two positive numbers is 6, and the sum of their squares is 22. What is the sum of their reciprocals?
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