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worty [1.4K]
2 years ago
6

Please help me out with this guys. No Links Please!

Mathematics
1 answer:
Sergio [31]2 years ago
5 0
I think it is 29%? I am not 100% sure though...
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What is the determinant of the coefficient matrix of the system {4x+3y+2z=0 -3x+y+5z=0 -x-4y+3z=0
slava [35]

Answer:

  130

Step-by-step explanation:

You want the determinant of the matrix ...

  \left[\begin{array}{ccc}4&3&2\\-3&1&5\\-1&-4&3\end{array}\right]

One way to figure it is as the difference between the sum of products of the down-diagonals and the sum of products of the up-diagonals:

  D = (4)(1)(3) +(3)(5)(-1) +(2)(-3)(-4) -(-1)(1)(2) -(-4)(5)(4) -(3)(-3)(3)

  = 12 -15 +24 +2 +80 +27

  D = 130

The determinant of the coefficient matrix is 130.

_____

Many scientific and graphing calculators and web sites can perform this calculation for you.

7 0
3 years ago
Antonio eats 1 slice of pizza in 3 minutes. How long will it take Antonio to eat 4 slices?​
GarryVolchara [31]

Answer:

12 minutes

4*3

That's the answer

8 0
3 years ago
Please help! Big grade! Extra points!! Help asap!
Sonbull [250]

Answer:

5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If (-1, y) lies on the graph of y= 2^2x, then y=<br> -4<br> 1/4<br> 1
AfilCa [17]

Answer:

1/4

Step-by-step explanation:

Substitute x=-1 to find y

Given y= 2^2x

y(-1)=2^-2=1/(2^2)

7 0
3 years ago
What is the answer to 2 4/5+5 2/3 in simplified form
Rus_ich [418]

Answer:

24×25-24×18+10

Step-by-step explanation:

it's gonna be 150 simplified

5 0
3 years ago
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