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vfiekz [6]
3 years ago
13

What is the value of 0.1561 rounded to the nearest tent in a decimal and a fraction

Mathematics
1 answer:
astra-53 [7]3 years ago
7 0

For the decimal rounded to the nearest tenth, 5 is is greater than numbers 1-4. So 5 rounds the 1.

0.2

0.2 in fraction form is 1/5.

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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
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Tom [10]
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6 0
3 years ago
Which is equal to the cos ÐR?<br>PLEASE HELP ME
inna [77]

Answer: 4/5 = .8

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I’m assuming it’s talking about angle R...

4 0
2 years ago
A pair of shoes costs $109 at Sneaker City. At the labor Day sale, they are 20% off. What is the
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8 0
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Each of these numbers represents the weight of a student in kilograms. What is the median of this data set?
aleksandrvk [35]

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www.alcula.com/calculators/statistics/median/

4 0
3 years ago
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