19). If xy=156, x+y=43, and x value of x-y?
-35
•35
0
-24

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Define multiplicative inverse. give an example of a number and its multiplicative inverse.