Graph the inequality on the number line.x ? 4
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.There are 1,447,966 active dentists living in a certain country. If 79.8% of these dentists are male, find (i) the percent of dentists who are female and (ii) the number of dentists who are female. Round to the nearest whole number.
A. (i) 79.8% female dentists; (ii) 1,155,477 female dentists B. (i) 20.2% female dentists; (ii) 292,489 female dentists C. (i) 79.8% female dentists; (ii) 29,248,913 female dentists D. (i) 20.2% female dentists; (ii) 29,248,913 female dentists
Solve the problem.Find f(-2) for
A. -8 B. -4 C. 0 D. 8
Solve the problem.A racetrack curve is banked so that the outside of the curve is slightly elevated or inclined above the inside of the curve. This inclination is called the elevation of the track. The maximum speed on the track in miles per hour is given by
where r is the radius of the track in miles and ? is the elevation in degrees. Find the maximum speed for a racetrack with an elevation of 28° and a radius of 
Round to the nearest mile per hour.
A. 13,526 mph B. 39,350 mph C. 198 mph D. 175 mph
Find the center, transverse axis, vertices, and foci of the hyperbola.4y2 - 100x2 = 400
A. center at (0, 0)
transverse axis is x-axis
vertices: (-2, 0), (2, 0)
foci: (- 2
, 0) , (2
, 0)
B. center at (0, 0)
transverse axis is y-axis
vertices: (0, -10), (0, 10)
foci: (- 2
, 0) , (2
, 0)
C. center at (0, 0)
transverse axis is y-axis
vertices at (0, -10) and (0, 10)
foci at (0, - 2
) and (0, 2
)
D. center at (0, 0)
transverse axis is x-axis
vertices: (-10, 0), (10, 0)
foci: (-2, 0), (2, 0)