Suppose that 14 bluebirds and 11 robins are trying out for a choir that will have 7 members. How many ways can this choir be formed if it must have more bluebirds than robins?Note:no two animals are exactly alike.

311740

Step-by-step explanation:

Given

There are 14 blue birds and 11 robins

We have to choose 7 members such that there are more blue birds than robins

This can be possible in 4 ways i.e.

7 BB,6 BB and 1 R, 5 BB 2 R,4 BB 3 R

Therefore total no of ways are

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)

step-by-step explanation: