Write the decimal number in standard form. Five hundred three and six hundred ninety-seven thousandths

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.

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.