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Greeley [361]
2 years ago
7

Curve fitting is a methode of finding

Mathematics
1 answer:
wel2 years ago
3 0

The method of least squares is a widely used method of fitting curve for a given data

Step-by-step explanation:

It is the most popular method used to determine the position of the trend line of a given time series. The trend line is technically called the best fit. ... The sum of the deviations of y from their corresponding trend values is zero.

You might be interested in
Which expression is equivalent to x + y + x + y + 3 [y + 5]
Alecsey [184]

Answer:

2x +5(y+3)

Step-by-step explanation:

this depends on what you want

x+y+x+y+3(y+5)

expanding this, we have;

2x +2y +3y+15

2x +5y +15

2x +5(y+3)

4 0
2 years ago
PLEASE HELP!!! 100 POINTS!
arlik [135]

Answer:

  x = 0; y = -6; z = 1

Step-by-step explanation:

You want to find the solution to the system of equations ...

  • 9x+y-3z=-9
  • 10x-y+2z=8
  • -10x-y+4z=10

<h3>Solution</h3>

This set of equations is conveniently solved using the matrix row-reduction features of a scientific or graphing calculator, spreadsheet, or any of a number of apps or on-line calculators.

The attachment shows the solution to be ...

  (x, y, z) = (0, -6, 1)

__

<em>Additional comment</em>

Solving a system of three or more equations "by hand" often can be done by an ad hoc process. It can be done in systematic fashion using Gauss-Jordan reduction techniques, but that often gets messy. Similarly, Cramer's Rule can be used, but that math tends to involve more arithmetic operations than are really necessary.

Adding the first equation to the other two eliminates the y-variable and reduces the system to two equations in two unknowns.

  (9x +y -3z) +(10x -y +2z) = (-9) +(8) . . . . adding [1] and [2]

  19x -z = -1 . . . . simplified

  (9x +y -3z) +(-10x -y +4z) = (-9) +(10) . . . . adding [1] and [3]

  -x +z = 1 . . . . simplified

At this point, we could graph the two equations, or we can proceed algebraically.

Adding these two equations gives ...

  (19x -z) +(-x +z) = (-1) +(1)

  18x = 0   ⇒   x = 0

Using the second of the reduced equations, we find ...

 -x +z = 1

  0 +z = 1   ⇒   z = 1

And using the second of the original equations, gives us ...

  10(0) -y +2(1) = 8

  -y = 6 . . . . . subtract 2

  y = -6 . . . . multiply by -1

Then the solution is (x, y, z) = (0, -6, 1), as above.

6 0
1 year ago
gary has 20 pairs of socks in his drawer and 6 of those pairs are black 4 are yellow and 10 are white. what is the probability t
klasskru [66]

Answer:

The chance of not getting a yellow pair is 80% or 8/10

6 0
3 years ago
Read 2 more answers
Anyone know (Worth lost of points, will mark brainliest!)<br> *I also do not accept links, Sorry!
nadezda [96]
Here ya go! :)
—————-

3 0
2 years ago
80% of what number is 15
joja [24]
X time 0.8 (or 80 percent)= 15
so 15/0.8=X
18.75
4 0
3 years ago
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