Marcus is running a science experiment in which he measures the rate at which bacteria multiply. Every 15 seconds the bacteria double in number. If there are 5 bacteria now, how many will there be in 3 minutes? A. 2048 B. 2560 C. 20480 D. 1200

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.