Find the value of the radical expression.3
A. 48
B. -48
C. -12
D. 12
Answer: D
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Find the center, foci, and vertices of the ellipse.9x2 + y2 - 162x + 720 = 0
A. 
+ (y - 9)2 = 1
center: (9, 0); foci: (9, 2
), (9, -2
); vertices:(9, 3), (9, -3)
B. (x - 9)2 + 
= 1
center: (9, 0); foci: (9, 2
), (9, -2
); vertices:(9, 3), (9, -3)
C. 
+ (y - 3)2 = 1
center: (3, 0); foci: (3, 4
), (3, -2
); vertices:(3, 9),
(3, -9)
D. (x - 3)2 + 
= 1
center: (3, 0); foci: (3, 4
), (3, -4
); vertices:(3, 9), (3, -9)
Write the expression in the standard form a + bi.
A. 
+ 
i
B. 
+ 
i
C. 
- 
i
D. 
- 
i
Determine whether the equation has real number solutions.8y2 = -3y - 8
A. Real solutions B. No real solutions
Decide on the payoff in this game when the specified strategy is used.(3, 3)
A. $10 from B to A B. No payoff C. $2 from A to B D. $2 from B to A