Solve.y' = 2x + xy; y = 5 when x = 0
A. y = 3ex2/2 - 5
B. y = 5ex2/2
C. y = 7ex2/2
D. y = 7ex2/2 - 2
Answer: D
Mathematics
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- . . .
A. 3
B. 
C. No limit
D. 0
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Find the length of the indicated portion of the trajectory.r(t) = (2cos t)i + (2sin t)j + 3tk, 0 ? t ? ?/2
A. 
?
B. 
?
C. 
?
D. 
?
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Find a 95% confidence interval for the true population proportion.In a survey of 352 adults, 55% said that they favored the proposed environmental laws.
A. 52.3% to 57.7% B. 49.7% to 60.3% C. 54.7% to 55.3% D. 55% to 60.3%
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A point P(x, y) in rectangular coordinates is given. Determine the polar coordinates 
such that 
and 
(
, 1)
A. 
B. 
C. 
D. 
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