Simplify.- 
A. -5
B. 4
C. 5
D. -4
Answer: D
Mathematics
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Evaluate the double integral over the given region.
R = {(x, y): 0 ? x ? 1, 0 ? y ? 3}
A. 
ln 2
B. ln 2 ln 4
C. ln 8
D. 4 ln 2
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Solve the following equations for x:
3x a. ÄÄ = 9 c. 13 - 4x = 9 2 1 9 4 3 b. x + Ä = Ä d. Ä + Ä = 7 4 4 x 5
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Solve the problem.In a town whose population is 3000, a disease creates an epidemic. The number N of people infected t days after the disease has begun is given by the function N(t) = 
. Find the number infected after 8 days.
A. 2152 B. 2154 C. 2155 D. 2150
Mathematics
What percent of $753.33 is $226?
A. 3% B. 31% C. 30% D. 7% E. 28%
Mathematics