How many different numbers can you make out of 1,2,3 and they can't have two of the same numbers in 1 problem ( can't be decimals) I think it 15?

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01-02-2017
Mathematics

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How many different numbers can you make out of 1,2,3 and they can't have two of the same numbers in 1 problem ( can't be decimals) I think it 15?

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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

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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

jasmines cd collection is 3/8 jazz 1/4 rap and the rest is rock music what is the fraction of rock music

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

apologiabiology apologiabiology · Answer 1 · 2017-02-08T21:12:31+01:00

apologiabiology apologiabiology

08-02-2017

there are 3 different numbers
slot method

how many 3 digit numbers?
321
312
123
132
213
231

6 numbes

how many 2 digit numbers?
12
21
13
31
23
32

6 numbers

how many 1 digit numbers
1
2
3

3 of them

6+6+3=15

15 different number, yah you ar right

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