Discover Questions

Probabilities question: If an event has a 1 in 32 chance of occurring, what is the chance that it will occur twice in 6 tries? Can you give me a chemical reaction that is common around your home and the elements involved? With a mean of 1252 and a standard deviation of 129 what percentile is 1000 in? How many letters are there in the alphabet? Solve each equation by the method of completing the square. Show your work.
Part I: x^2 + 8x = 20 Part II: x^2 − 30x = −125?