x? = x (0.2 ? 0.004x ? 0.005y) , y? = y (0.1? 0.0035x ? 0.004y)
What will be an ideal response?
(0, 0), node, unstable ;
(50, 0), node, asymptotically stable ;
(0, 25), saddle point, unstable
Mathematics
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Write a chain rule formula for the following derivative.
for w = f(x, y, z); x = g(r, s, t), y = h(r, s, t), z = k(r, s, t)
A. 
= 
+ 
+ 
B. 
= 
+ 
C. 
= 
+ 
+ 
D. 
= 
+ 
+ 
Mathematics
Write the first four terms of the geometric sequence with the given values.a1 = 
, r = 
A. 
, 
, 
, 
B. 
, 
, 
, 
C. 
, 
, 
, 
D. 
, 
, 
, 
Mathematics
Simplify the expression. If necessary, express the result that is not a rational number as a decimal rounded to two decimal places.
A. 26
B. 
C. 5
D. not a real number
Mathematics
Factor the trinomial.10z2 + 9z - 9
A. (10z + 3)(z - 3) B. (2z - 3)(5z + 3) C. (2z + 3)(5z - 3) D. (10z + 1)(z - 9)
Mathematics