Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.(x-9y2)-4z3
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.Consider the pair of differential equations that model a predator-prey system with populations x and y. x'(t) = -5x + xy y'(t) = 2y - xy(a) Find the lines along which x'(t) = 0,(b) find the lines along which y'(t) = 0,(c) find the equilibrium points for the system.
A. (a) x' = 0 along the lines x = 
and y = 0
(b) y' = 0 along the lines y = 
and x = 0
(c) (0, 0) and 
B. (a) x' = 0 along the lines x = 0 and y = 5
(b) y' = 0 along the lines y = 0 and x = 2
(c) (0, 0) and (2, 5)
C. (a) x' = 0 along the lines x = 5 and y = 0
(b) y' = 0 along the lines y = 2 and x = 0
(c) (0, 0) and (5, 2)
D. (a) x' = 0 along the lines x = 0 and y = 
(b) y' = 0 along the lines y = 0 and x = 
(c) (0, 0) and 
Provide an appropriate response.True or False?e = 2.7
A. True B. False
Add.+ 
A. 1074.730 B. 1074.820 C. 1074.829 D. 1074.830
Solve the problem.Hamlet has a credit card balance of $5280.21 with an annual percentage rate of 10.5%. His card requires a minimum payment of 2% of the total balance. What is his minimum payment?
A. $10.50 B. $1056.04 C. $105.60 D. $554.42