Find an equation of the line described. Through (4, 9), perpendicular to the y-axis
A. x = 4
B. 4x + 9y = 0
C. 4x + y = 9
D. y = 9
Answer: D
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Determine if the series converges or diverges; if the series converges, find its sum.
A. Converges; 
B. Converges; 
C. Converges; 
D. Diverges
Evaluate the cylindrical coordinate integral.
A. 
B. 
C. 
D. 
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m B. 21 + m C. 21 + 7m D. 21 + 3m
Provide an appropriate response.Suppose you wish to purchase a factory that will yield an annual return of $12,000 for 12 years, after which the factory will have no value. You want to earn 8.25% annually on your investment and also set up a sinking fund to replace the purchase price. If money is placed in the fund at the end of each year and earns 4.2% compounded annually, how much should you pay for the factory?
Fill in the blank(s) with the appropriate word(s).