Answer the question.Suppose that an > 0 and bn > 0 for all n ? N (N an integer). If 
= ?, what can you conclude about the convergence of 
?
A. 
diverges if 
diverges, and 
converges if 
converges
B. 
diverges if 
diverges
C. 
converges if 
converges
D. The convergence of an cannot be determined.
Answer: B
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Solve the problem.Find the sum of the infinite series 1 + 2r + 5r2 + 2r3 + r4 + 2r5 + 5r6 + 2a7 + r8 ... for those values of r for which it converges.
A. 
B. 
C. 
D. 
Use a vertical format to find the product.6x2 + 9x + 2
A. 54x3 + 81x2 + 18x B. 54x3 + 48x2 + 72x + 10 C. 6x3 + 57x2 + 74x + 16 D. 6x3 + 48x2 + 72x + 16
Solve the problem.log 7 1 = x
A. 1 B. 7 C. 49 D. 0
Solve the problem.Bob wants to fence in a rectangular garden in his yard. He has 86 feet of fencing to work with and wants to use it all. If the garden is to be x feet wide, express the area of the garden as a function of x.
A. A(x) = 42x - x2 B. A(x) = 43x - x2 C. A(x) = 44x - x2 D. A(x) = 45x2 - x