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NeX [460]
3 years ago
14

If kn equals 29 what is cn

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
6 0
29 kn are equal to 2900000 cn
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(5ab - 10b^2 + 15bc) ÷ 5b
Brilliant_brown [7]

Answer:

Final answer: a-2b+3c

Step-by-step explanation:

5ab/5b= a

-10b^2/5b= -2b

15bc/5b= 3c  

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3 years ago
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Which of the following is equivalent to 2x2 + 9x + 9?
valkas [14]

Answer:

(x+3)(2x+3)

Step-by-step explanation:

Factor:

2x^2+9x+9

=(2x+3)(x+3)

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3 years ago
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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
A 21 foot tower must be secured with a wire anchored 7 feet from the base of the tower. What angle will the wire make with the g
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30

Step-by-step explanation:

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What is the range of the function represented by these ordered pairs?
irinina [24]
I believe it is b and hmu?
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