Find the sum of the series.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the differential equation.
+ 7
+ 10y = 0
A. y = e5x(C1 cos 2x + C2 sin 2x) B. y = e-2x(C1 cos 5x + C2 sin 5x) C. y = C1e2x + C2e5x D. y = C1e-2x + C2e-5x
Mathematics
Use the information in the table to solve the problem. Write your answer as a fraction in lowest terms.The table below shows the amounts of pollutants (in parts per million) in a sample of rainwater.
Find the ratio of pollutant C to pollutant A.
A. 
B. 
C. 
D. 
Mathematics
Simplify.
- 
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality and give the solution in interval notation.a - 6 < -7
A. (-?, -1) B. (-?, -13] C. (-1, ?) D. (-?, -13)
Mathematics