Solve the problem.A technician has readings that take 
minute each to read and record. How many readings can be completed in 54 minutes?
A. 36 readings
B. 18 readings
C. 20 readings
D. 81 readings
Answer: D
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Represent the sets on a number line.{x|x > -4}
A. 
B. 
C. 
D. 
Find the center, transverse axis, vertices, foci, and the equations of the asymptotes of the hyperbola.x2 - 16y2 - 8x + 32y - 16 = 0
A. center at (4, 1)
transverse axis: x = 4
vertices: (4, -3) and (4, 5)
foci: (4, 1 - 
) and (4, 1 + 
)
asymptotes: y + 1 = - 4(x + 4) and y + 1 = 4(x + 4)
B. center: (4, 1)
transverse axis: y = 1
vertices: (3, 1) and (5, 1)
foci: (4 - 
, 1) and (4 + 
, 1)
asymptotes: y - 1 = - 4(x - 4) and y - 1 = 4(x - 4)
C. center: (4, 1)
transverse axis: y = 1
vertices: (0, 1) and (8, 1)
foci: (4 - 
, 1) and (4 + 
, 1)
asymptotes: y - 1 = - 
(x - 4) and y - 1 = 
(x - 4)
D. center: (1, 4)
transverse axis: y = 4
vertices: (-3, 4) and (5, 4)
foci: (1 - 
, 4) and (1 + 
, 4)
asymptotes: y - 4 = - 
(x - 1) and y - 4 = 
(x - 1)
Solve. Remember to insert units when writing your answer.In November, 10 tons 1392 lb of coal were delivered to a steel mill. In December, 6 tons 1592 lb were delivered. Find the total amount of coal delivered in these two months.
A. 16 tons 984 lb B. 4 tons 1800 lb C. 17 tons 984 lb D. 3 tons 1800 lb
Multiply. Assume that all variables represent natural numbers.-7x2yn(8xyn+1 - 3)
A. -56x2y2n+1 + 21x2yn B. -56x3y2n + 21x2yn C. -56x3yn2+1 + 21x2yn D. -56x3y2n+1 + 21x2yn