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Mathematics 10 Online
OpenStudy (anonymous):

How many ways can six books be arranged a shelf? 21 120 360 720

OpenStudy (anonymous):

6! ways 6! = 6*5*4*3*2*1

OpenStudy (anonymous):

O_O

OpenStudy (anonymous):

my school won't give me that option…

OpenStudy (anonymous):

720! yay

OpenStudy (anonymous):

Yay :3

OpenStudy (anonymous):

Their are eight girls competeing in an ice-skating competition. In how many years can they finish in first, second, and third place. 336 1,680 2,016 40,320

OpenStudy (anonymous):

336

OpenStudy (anonymous):

How many ways can a president and vice president be selected from a class of 12? 23 72 132 1,320

OpenStudy (anonymous):

C

OpenStudy (anonymous):

How many ways can seven students line up for a class picture? 5, 040 210 28 7

OpenStudy (anonymous):

A

OpenStudy (anonymous):

Thank you!!! :D save my life :3

OpenStudy (anonymous):

sigh it was simple multiplication 6*5*4*3*2*1 = 720

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