Aclub has 15 members ,of whom 8 are girls. six of the members are selected at random to represent the club at the event. find the probability that exactly half of the selected members are girls.

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and find homework help for other Math questions at eNotes. ... 3 students are selected from a class that has 10 boys and 5 girls. ... 1 educator answer; From a group of 7 candidates, a committee of 6 people is selected. ... answer; What is the probability that a number selected at random from the set {2, 3, 7, 12, 15, 22, 72,.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

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