Identify the graph of the function
?
?y = 2cos ?x?, 
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: A
Mathematics
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Evaluate the line integral.
; C is the curve x = 3t, y = (5 cos 
t), z = (5 sin 
t), 0 ? t ? 
?
A. 
?2 + 
B. 
+ 
C. 
?2 + 25
D. 
?
Mathematics
Provide an appropriate response.3
- 5
+ (?) = 18
- 30
What will be an ideal response?
Mathematics
The ratio of working-age population to the elderly in the United States (including projections after 2000) is given by
?
?
with t = 0 corresponding to the beginning of 1995. What will be the ratio at the beginning of 2005?
?
A. f(1995) = 35.7 B. f(10) = 4 C. f(10) = -4 D. f(10) = 4.4 E. f(1995) = -35.7
Mathematics
Write the solution set in interval notation.{x|x > -4}
A. (-?, -4) B. (-?, -4] C. [-4, ?) D. (-4, ?)
Mathematics