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Rashid [163]
3 years ago
6

The system dx dt = −sx + sy dy dt = −xz + rx − y dz dt = xy − bz is the famous Lorenz system. It was developed as a model for we

ather prediction, but it has since become famous because its solutions display chaotic behavior. (a) (2 points) Let b = 8/3, s = 10, and r = 27. Use initial conditions x(0) = −4, y(0) = 5, and z(0) = 10. Use ode45 to solve this system on 0 ≤ t ≤ 30. Plot x(t). (b) (1 point) Change one of the initial conditions by 0.1, and solve it again. How do the two solutions for x(t) compare? This is an example of the chaotic behavior of this system of equations. (c) (2 points) Plot the 3D trajectory. Use the plot3 command with the x(t), y(t), and z(t) arrays as arguments. You will see the famous Lorenz strange attractor. Rotate it around a bit, and turn in a plot of an angle you like.
Mathematics
1 answer:
BaLLatris [955]3 years ago
4 0

Answer:67

Step-by-step explanation:cause id no not know

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The answer is $2.52.

Step-by-step explanation:

56 x .045= $2.52

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The position of an object moving along a straight line for
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Answer:

at 2/3 seconds

Step-by-step explanation:

S1(t) = t³ + 2

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Average speed, dS2/dt = 2t

The distance between the objects is

dS1/dt - dS2/dt

= 3t² - 2t

The time the distance between the two object is at minimum is when the distance is 0

That is, when

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4 years ago
Trey runs 7 miles in 50 minutes. at the same rate, how many miles would he run in 75 minutes?
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He can run 10.5 miles in 75 minutes

8 0
3 years ago
Stacey has a square piece of cloth. She cuts 3 inches off of the length of the square and 3 inches
Mamont248 [21]

Answer:

6 in

Step-by-step explanation:

Let x = the side length of the original square.

They removed 3 in from each side of the original square, so the side lengths of the remaining square are x - 3 in.

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The area of the original square is x²

I assume the area of the smaller square is ¼ that of the original square. Then

1. Solve for x

\begin{array}{rcl}\frac{1}{4}x^{2} & = & (x - 3)^{2}\\x^{2} & = & 4(x - 3)^{2}\\& = & 4(x^{2} - 6x + 9)\\x^{2}& = & 4x^{2} - 24x + 36\\3x^{2} - 24x + 36 & = & 0\\x^{2} - 8x + 12 & = & 0\\(x - 2)(x - 6) & = & 0\\x - 2 = 0& \qquad &x - 6 = 0\\x = 2& \qquad &x = 6\\\end{array}

2. Calculate the side length of the smaller square

(a) x = 2

Side length = x - 3 = 2 - 3 = -1 in.

IMPOSSIBLE. You can't have a negative side length.

(b) x = 6

Side length of smaller square = 6 - 3 = 3 in.

Side length of original square = x = 6 in

Check:

\begin{array}{rcl}\frac{1}{4}(6)^{2} & = & (6 - 3)^{2}\\\frac{1}{4}\times 36 & = & 3^{2}\\9 & = & 9\\\end{array}

OK.

3 0
3 years ago
Apurse contains S 7.55 in quarters and dimes. There are
borishaifa [10]

Answer:

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There are 13 dimes and 13+12 = 25 quarters in the purse.

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3 years ago
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