I honestly don’t know took the quiz and got it wrong
Questions and Answers about Snow - Snow Forecast
look at the web site it might help
It looks like this is a system of linear ODEs given in matrix form,
with initial condition x(0) = (-6, 8)ᵀ.
Compute the eigenvalues and -vectors of the coefficient matrix:
Let v be the eigenvector corresponding to λ = 9 + 2i. Then
or equivalently,
Let ; then , so that
and we get the other eigenvalue/-vector pair by taking the complex conjugate,
Then the characteristic solution to the system is
From the given condition, we have
and so the particular solution to the IVP is
which you could go on to rewrite using Euler's formula,
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A fire can be controlled with the use of a fire extinguisher. Extinguishers can assist put out the fire and perhaps prevent it from continuing to burn. Some fire extinguishers, depending on their size, can be moved about and used by hand. Fire extinguishers come in a variety of sizes. Longer use is possible with larger fire extinguishers.
The weight of hand-held fire extinguishers ranges from 0.5 to 14 kg. Extinguishers of 2 kg and 12 kg weights operate for two to four to eighteen seconds, respectively. Fire extinguishers come in two primary varieties the cartridge-operated and stored-pressure. In stored pressure devices, the expellant and the actual firefighting agent are both kept in the same chamber.
To know more about Fire extinguishers here
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