Prove that the bisector of the vertical angle of an isosceles triangle is perpendicular bisector of the base.

Somone me i want to know what 18 hours out of 24 hours in a fraction

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?

What is the measure of sty in oo below? 130 310 230 50