Find the first three terms of the Taylor series in x - a.cot x, x = 
A. 
- 
2 - 
3 - . . .
B. 
- 
2 + 
3 - . . .
C. 
+ 
3 + 
5 + . . .
D. - 
- 
3 - 
5 - . . .
Answer: D
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A container contains a large unspecified number of ping-pong balls. A student takes 80 balls from the container, marks them with a blue dot, returns the marked balls to the container, and thoroughly mixes the balls. She then takes 80 balls again from the container. Of these, 16 have blue dots. She now wants to use this data to estimate the total number of ping-pong balls in the container.An estimate for the number of ping-pong balls in the container is
A. 400. B. 480. C. 160. D. 576. E. none of these
Solve the problem.Use the formula s = r? to determine the value of s in the figure. Round to two decimal places.
A. 343.77 in. B. 12.57 in. C. 0.17 in. D. 6.28 in.
Write the partial fraction decomposition of the rational expression.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
Solve for the requested variable.y varies jointly as a and b and inversely as the square root of c, and y = 6 when a = 4, b = 3, and 
. Find y when a = 10, b = 7, and c = 4.
A. y =140 B. y =35 C. y =560 D. y =70