Find the convergence set for the given power series. Hint: First find a formula for the nth term; then use the Absolute Ratio Test.1 + 9x + 
+ 
+ 
+ . . .
A. -9 ? x ? 9
B. -1 ? x ? 1
C. -1 < x < 1
D. All x
Answer: D
Mathematics
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Simplify.
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Without using a calculator, give the exact trigonometric function value with rational denominator.cot 45°
A. 1
B. 
C. 
D. 
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Solve the problem.A cubical container measures 5 in. on each edge. What does it cost to fill the container at $2.88 per cubic in.?
A. $43.20 B. $414.72 C. $72.00 D. $360.00
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Answer the question.The points (
, -2) and (2
, 3) are the points at which a particular diameter of a circle intersects the circle. What are the coordinates of the center of the circle?
A. 
B. 
C. 
D. 
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