Two angles are complementary they also have the same measure what is true about this?

For each proportion find the unknown number x 1/5/8=×/15

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

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?