Why do jet streams flow parallel to isobars?

Predict what the effect will be on some of Earth's systems if a forest is cut down for lumber.

(a) Express the general solution of the given system of equations in terms of real-valued functions.(b) Also draw a direction field, sketch a few of the trajectories, and describe the behavior of the solutions as t→∞.x'='−1−41−1x

find the value of b for which the given equation is exact, and then solve it using that value of b.(ye2xy+x)+bxe2xyy'=0

(a) Express the general solution of the given system of equations in terms of real-valued functions.(b) Also draw a direction field, sketch a few of the trajectories, and describe the behavior of the solutions as t→∞.x'='1−15−3x

Determine whether each of the equations s exact. If it is exact, find the solution.(2xy2+2y)+(2x2y+2x)y=0