Question

A six digit code is made using any digit in any location.
a) How many codes are possible?
b) How many codes start with a 5 and end with an even digit?
c) How many codes can be made with at least one 9?

Answer 1

I pm u :)

Answer 2

6*5*4*3*2*1

Answer 3

Is that right I am not certain...

Answer 4

a) 36
i dont know the others :/

Answer 5

36 is so wrong

Answer 6

I already know a) is 210

Answer 7

I think

Answer 8

xD

Answer 9

there are 10 numbers from 0 to 9
and there are 6 places for these numbers so

Answer 10

10^6= number of possible 6 digit codes

Answer 11

I thought it was 10C6