What is the simplified form of the seventh root of x to the fifth power times the seventh root of x to the fifth power?

1) x to the four ninth power

2) x times the seventh root of x cubed

3) x

4) the square root of x

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?