Graph the hyperbola.25x2 - 9y2 = 225
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.A roller mechanism follows a path described by y = 
, where units are in feet. If 
find the magnitude and direction of the velocity (in ft/s) at the point 
A. 4.0 ft/s, 63° B. 4.5 ft/s, 77° C. 4.5 ft/s, 63° D. 4.0 ft/s, 77°
Solve.A cement truck was filled with 6360 lb of cement. Throughout the day cement was poured at four sites in the following amounts: 1259 lb, 2512 lb, 958 lb, and 860 lb. How much cement was left in the truck at the end of the day?
Fill in the blank(s) with the appropriate word(s).
Simplify.8x - 12x - x
A. -5x B. -4x C. -3x D. -4x - x
Find the center, transverse axis, vertices, foci, and the equations of the asymptotes of the hyperbola.
- 
= 1
A. center: (-4, 1)
transverse axis: x = -4
vertices: (-8, 1) and (0, 1)
foci: (-4 - 
, 1) and (-4 + 
, 1)
asymptotes: y - 1 = - 
(x + 4) and y - 1 = 
(x + 4)
B. center: (-4, 1)
transverse axis: x = -4
vertices: (-4, -4) and (-4, 6)
foci: (-4, 1 - 
) and (-4, 1 + 
)
asymptotes: y + 1 = - 
(x - 4) and y + 1 = 
(x - 4)
C. center: (1, -4)
transverse axis: y = 1
vertices: (-4, -4) and (6, -4)
foci: (1 - 
, -4) and (1 + 
, -4)
asymptotes: y + 4 = - 
(x - 1) and y + 4 = 
(x - 1)
D. center: (-4, 1)
transverse axis: y = 1
vertices: (-9, 1) and (1, 1)
foci: (-4 - 
, 1) and (-4 + 
, 1)
asymptotes: y - 1 = - 
(x + 4) and y - 1 = 
(x + 4)