Determine the real solutions to the system of nonlinear equations.
A. 
, 
B. 
, 
C. 
, (1, 5)
D. 
, (1, 5)
Answer: B
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Find all solutions of the equation. Leave answers in trigonometric form.x3 + 8 = 0
A. {2 cis 180°, 2 cis 60°, 2 cis 300°} B. {2 cis 180°, 2 cis 240°, 2 cis 240°} C. {2 cis 180°, 2 cis 120°, 2 cis 300°} D. {2 cis 180°, 2 cis 120°, 2 cis 240°}
Find the probability.A bag contains 4 red marbles, 3 blue marbles, and 9 green marbles. What is the probability that a randomly selected marble is blue?
A. 
B. 
C. 
D. 
Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire of constant density that lies along the first-quadrant portion of the circle 
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 0, 
= 
Use radical notation to rewrite the expression. Simplify, if possible.84/3
A. 16 B. 64 C. 128 D. 32