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1. ### If you have 4 people, who each have the option of 4 shirts, 4 pants, and 4 shoes, how many combinations? ?

Exactly. Assuming you are combining a person, with a specific shirt, pair of pants and pair of shoes then you have 4 choices for each. 4 x 4 x 4 x 4 = 4^4 = 256 ways to clothe a person.

3 Answers · Science & Mathematics · 16/11/2008

2. ### Show without computation that the following determinate is equal to zero?

Umm...isn't that 24? d = (aei + bfg + cdh) - (gec + hfa + idb) aei = 0 bfg = 2 * 4 * 3 = 24 cdh = 0 gec = 0 hfa = 0 idb = 0

2 Answers · Science & Mathematics · 16/10/2008

3. ### Volume . . . . vectors ?

...can use Sarus methode | a b c | | d e f | | g h i | D = aei + bfg + cdh - ceg - afh - bdi and the answer is for first one 20 and...

1 Answers · Science & Mathematics · 17/08/2008

4. ### Use Cramer's rule,if possible, to solve the system of linear equations. Algebra!!!?

...d e f | | g h i | is evaluated as follows: D = aei + bfg + cdh – ceg – afh – bdi. In the case of the first determinant...

1 Answers · Science & Mathematics · 21/07/2008

5. ### math problem?

..., ........jei + khc + lbf - lec - kbi - jhf x = ------------------------------------------- .......aei + bfg +cdh - gec - hfa - idb .......aki + jfg + cdl - gkc - dji - alf y...

1 Answers · Science & Mathematics · 06/01/2008

6. ### determinants of matrices?

...d e f d e g h i g h 2. then multiply the main diagonals and add aei + bfg + cdh 3. multiply the opposite diagonals and add gec + hfa + idb 4...

2 Answers · Science & Mathematics · 11/12/2007

7. ### (math pt slope & determinants) I have done half of this problem, is it right? and how do I do the other half?

...i | Downhill Diagonals - Uphill Diagonals = aei + bfg + cdh - ceg - fha - ibd GOOD LUCK

2 Answers · Science & Mathematics · 04/12/2007

8. ### How do you use determinants to find the area of a triangle?

...i | Downhill Diagonals - Uphill Diagonals = aei + bfg + cdh - ceg - fha - ibd GOOD LUCK

3 Answers · Science & Mathematics · 04/12/2007

9. ### How do you solve a 4 x 4 matrix ?

You have to do it in a few stages - first, |f, g, h | * a, and the same for the other values in the top row, will |j, k, l | be added up. |n, o, p| You then solve each 3 * 3 matrix individually. It's a long, drawn out, irritating process

1 Answers · Science & Mathematics · 21/10/2007

10. ### Find the determinant?

The determinant of a 3x3 matrix [a b c] [d e f] [g h i] is aei+bfg+cdh-gec-hfa-idb, so (14*8*5) + (-13*-1*-10) + (0*3*-2) - (-10*8*0) - (-2*-1...

3 Answers · Science & Mathematics · 19/08/2007