What is the value of $$\(b\)$$ for which $$\(x^{2}-8 x+b=0\)$$ has only one solution?

In a set of primes, each digit from 1 through 9 is used exactly once in the set, and 0 is not used. What is the least possibl...

Each round, I flip three fair coins and you flip two fair coins. Each round, we might throw equal numbers of heads. In the ro...