Solve the variation problem.Suppose y varies inversely with x, and y = 32 when x = 7. Find y when x = 56.
A. y = 49
B. y = 8
C. y = 4
D. y = 28
Answer: C
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Factor the binomial completely.27 - t3
A. (3 + t)(9 - 3t + t2) B. (3 + t)(9 - t2) C. (3 - t)(9 + 3t + t2) D. (3 - t)(9 + t2)
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)
Find the probability.A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing a face card or a 6?
A. 
B. 16
C. 
D. 
Factor.5x2 - 14x - 24
A. (5x + 6)(x - 4) B. (6x + 5)(x - 4) C. (x + 5)(x - 4) D. (x - 6)(x - 4)