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Mathematics 12 Online
OpenStudy (anonymous):

I have digits: 4,3,0,5,6,7. How many 4-digits numbers can i make? How many of them, id all digits are different?

OpenStudy (isaidavila):

Do you have choices?

OpenStudy (anonymous):

For the first part, you have 6 digits to choose from and four spots to fill. So you have 6 choices for the first, 6 choices for the second, etc...

OpenStudy (isaidavila):

Could be 5*6*6*6 The first only have 5 options because of zero

OpenStudy (anonymous):

@isaidavila Right! i missed that.

OpenStudy (isaidavila):

Ok

rebeccaxhawaii (rebeccaxhawaii):

good job that is correct

OpenStudy (anonymous):

The zero will make the second part a little more complicated.

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