The geometric configuration of the solutions of    in the phase plane is
Select the correct answer.
?

A. stable node
B. unstable node
C. stable spiral point
D. unstable spiral point
E. saddle point


Answer: A

Mathematics

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Integrate the function f over the given region.f(x, y) = e2x + 3y over the rectangle 0 ? x ? 1, 0 ? y ? 1

A. (e5 - e3 - e2 - 1)
B. (e5 - e3 - e2 - 1)
C. (e5 - e3 - e2 + 1)
D. (e5 - e3 - e2 + 1)

Mathematics

Perform the indicated operations. Write answers using only positive exponents. Assume variables represent positive real numbers.(9z)1/5 ? (9z)-2/5

A.  
B. (81z)1/5
C.
D. (9z)1/5

Mathematics

Show that for any positive number ? we can find a positive number ? such that the statement below is satisfied.-15x - 125 is less than ? away from 130 whenever x is less than ? away from -17.

A. ? = 
B. ? = 
C. ? = 
D. ? = 

Mathematics

Graph the line containing the point P and having slope m.P = (7, -2); m = -  

A.

B.

C.

D.

Mathematics