Factor the trinomial completely.5x2y2 + 25xy + 1
A. 5(xy + 1)(xy + 5)
B. (5xy + 1)(xy + 5)
C. 5(x2y2 + 5xy + 1)
D. prime
Answer: D
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Solve the initial value problem.
= 
+ ?x2, x >1, y(2) = -4?
A. y = 5 sec-1 x + 
- 
?
B. y = 5 sin-1 x + 
C. y = 5 csc-1 x + 
- 
?
D. y = 5 sec-1 x + 2x - 
?
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Solve the problem.The NSC (Not So Consistent) Corporation has just completed its first year of business. The following chart shows its monthly profit (or loss).MonthProfit (Loss) in DollarsJanuary-14,526February1874March-8977April-14,107May14,073June14,632July-13,834August-13,170September-4860October6630November-3338December-974The profit was smallest in 
.
A. February B. December C. June D. January
Find the domain of the given function.f(x) = 
A. [-3, ?)
B. (3, ?)
C. (- 
, ?)
D. [
, ?)