Solve the equation using an integrating factor.
, t > 0
A. y = Ct + e2t
B. y = t + 1/2 + Ce2t
C. y = t - Ce2t
D. y = 1/2 + Ce-2t
Answer: B
Mathematics
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in the annular region 
to the origin.
A. 
B. 
C. 
D. 
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Restate the fact as indicated.The population of the United States in 2000 was roughly 280 million. Express this as the number of people per square mile. The land area of the United States is roughly 3,536,000 square miles.
A. 0.8 people per square mile B. 79 people per square mile C. 8 people per square mile D. 790 people per square mile
Mathematics
Verify the identity.csc2 
= 
What will be an ideal response?
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Factor out the largest common factor.m(n2 - 8) - 5(n2 - 8)
A. mn2 - 8m - 5n2 + 40 B. (n2 - 8)(m + 5) C. (n2 - 8)(m - 5) D. (n2 - 5)(m - 8 )
Mathematics