Solve the problem.The population of a town was 30,800 at the beginning of 1970. If the population decreased 300 people per year, how many people lived in the town at the beginning of 1985?
A. 4500
B. 26,600
C. 26,000
D. 26,300
Answer: D
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Calculate the flux of the field F across the closed plane curve C.F = (x+y)i + xyj; the curve C is the closed counterclockwise path around the rectangle with vertices at 
and 
A. 
B. 
C. - 
D. 30
Use the Comparison Test to determine if the series converges or diverges.
A. converges B. diverges
Solve the problem.Approximately one-half of all glass bottles distributed will be recycled each year. A beverage company distributes 390,000 bottles. The number still in use after t years is given by the function N(t) = 390,000
t .After how many years will 5000 bottles still be in use?
A. 0.2 yr B. 6.3 yr C. 4.4 yr D. 3.0 yr
Solve the problem.A triangular piece of glass is being cut so that the height of the triangle is 4 inches shorter than twice the base. If the area of the triangle is 24 square inches, how long is the height of the triangle?
A. 12 in. B. 10 in. C. 8 in. D. 6 in.