Divide.
A. 
+ 
i
B. - 
+ 
i
C. - 
+ 
i
D. 
+ 
i
Answer: A
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Solve the problem.A poker hand consists of 5 cards dealt from an ordinary deck of 52 playing cards. How many different hands are there consisting of four hearts and one spade?
A. 715 B. 728 C. 13 D. 9295
Find the perfect square trinomial whose first two terms are given.x2 + 
x
A. x2 + 
x + 
B. x2 + 
x + 
C. x2 + 
x + 
D. x2 + 
x + 144
Rationalize the denominator. 
A. 
B. 
C. 
D. 
Use Descartes' Rule of Signs to determine the possible number of positive and negative zeros of 
a. 3 positive reals or 1 positive real; 3 negative reals or 1 negative real b. 3 positive reals or 1 positive real; no negative reals c. 0 positive real; 3 negative reals or 1 negative real d. 1 positive real; 3 negative reals or 1 negative real