An election ballot asks voters to select two city commissioners from a group of four candidates. In how many ways can this be done?

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julie0203ovmv2k julie0203ovmv2k

02-09-2017
Mathematics

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An election ballot asks voters to select two city commissioners from a group of four candidates. In how many ways can this be done?

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find the circumference of a circle whose radius is 15.4cm

What value of x makes the equation true ? 4(2x-4)=16

In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times

What value of x makes the equation true ? 4(2x-4)=16

In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times

winwin2548ou9f4n winwin2548ou9f4n · Answer 1 · 2017-09-02T05:34:09+02:00

winwin2548ou9f4n winwin2548ou9f4n

02-09-2017

Let n = 12
Let r = 6
Replace every n! with 12 and every r! with 6 and then do the math.
nCr = 12!/[(12 - 6)!*6!]
nCr = 479001600/(720)(720)
nCr = 479001600/518400
nCr = 924
There are 924 ways or combinations to select 6 city commissioners from a group of 12 candidates

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