Find an equation for the indicated ellipse.Foci (±3, 0) and vertices (±8, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
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Solve the problem.The function defined by 
gives the distance in feet that a car going approximately 
will skid in t seconds. Find the time it would take for the car to skid 
. Round to the nearest tenth.
A. 10.1 sec B. 10.3 sec C. 9.9 sec D. 8.9 sec
One morning, John drove 5 hours before stopping to eat. After lunch, he increased his speed by 10 mph. If he completed a 490-mile trip in 9 hours of driving time, how fast did he drive in the morning? ? Please enter your answer as a number without the units.
Fill in the blank(s) with the appropriate word(s).
Find the center, transverse axis, vertices, foci, and the equations of the asymptotes of the hyperbola.
- 
= 1
A. center: (0, 0)
transverse axis: y = 0
vertices: (-4, 0), (4, 0)
foci: (-4
, 0), (4
, 0)
asymptotes: y = - 3x and y = 3x
B. center: (0, 0)
transverse axis: x = 0
vertices: (-12, 0), (12, 0)
foci: (-4, 0), (4, 0)
asymptotes: y = - 3x and y = 3x
C. center: (0, 0)
transverse axis: x = 0
vertices: (0, -12), (0, 12)
foci: (0, -4
), (0, 4
)
asymptotes: y = - 3x and y = 3x
D. center: (0, 0)
transverse axis: x = 0
vertices: (0, -12), (0, 12)
foci: (-4
, 0), (4
, 0)
asymptotes: y = - 3x and y = 3x
Use the product and quotient rules, as necessary, to simplify the radical expression.
A. 13
B. 5
C. 5
D. 25