3. Consider the system of ODES dx dt dy dt =x(80 - x - y) =y(120 — x − 3y) ) Determine every fixed point. ») Determine the linear stability of each fixed point. :) Sketch a phase portrait, including nullclines. You only need to sketch the first quadrant.

Q: Question attached

A: Given information- Sample proportion, p = 0.25 We know that, sample is best estimator of population…

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A: Explanation of the answer is as follows

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A: topic - quadratic equations

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A: We have to find the LCM of 77 and 18.

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A: This integral can be solved easily by writing hyperbolic sine in terms of exponentials as explained…

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A: here the graph passes two times  through the x -axis  so there will be two roots

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Q: photo attached

A: To prove: The identity,

Q: Question attached

A: Hello. Since your question has multiple parts, we will solve the integration by first six part for…