A receptionist recorded the number of people who took an elevator up from his floor and the number
who took an elevator down. He also noted the number of men and women. The table shows the results.
Elevator Up
Elevator Down
Men
36
43
Women
39
42
What is the experimental probability that the next person will be a woman taking the elevator up?

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

D.

The nuber of nurons is 34 in a attom