From the given list, identify the proper fractions.
, 
, 
, 
A. 
, 
, 
B. 
, 
, 
C. 
, 
D. 
, 
, 
Answer: A
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Determine whether the improper integral converges or diverges.
A. Diverges B. Converges
Solve.In the study of alternating electric current, capacitive voltage is given by 
, where f is the number of cycles per second, i is the maximum current, and t is the time in seconds. Solve the equation for t.
A. t = 2?f cos 
B. t = 
arccos 
C. t = 2?f arccos 
D. t = 
arccos 
Find the equation of the parabola which has the given vertex V, which passes through the given point P, and which has the specified axis of symmetry.V (4, 1), P(16, -1), horizontal axis of symmetry
A. (y - 4)2 = 
(x - 1)
B. (x + 4)2 = 
(y + 1)
C. (x - 4)2 = 
(y - 1)
D. (y - 1)2 = 
(x - 4)
Which equation matches the given calculator-generated graph and description? Decide without using your calculator.
Ellipse; foci (±4, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1