Solve the problem by integration.Find the volume generated by rotating the area bounded by 
and 
about the 
A. 
? ln 
B. 
? ln 
C. 
? ln 
D. 
? ln 
Answer: C
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Solve the problem.Which of the following vectors is parallel to v = 9i + 5j?
A. w = 
i - 
j
B. w = 
i + 
j
C. w = 45i - 25j
D. w = - 
i + 
j
Solve the problem.The orbit of Skylab 4 had a period of T = 93.11 minutes. Calculate the semimajor axis of the orbit. 
and 
A. 444 km B. 6.805 x 106 km C. 6805 km D. 4.440 x 104 km
Solve the problem.Two pipes can be used to fill a pool. Working together, the two pipes can fill the pool in 
The larger pipe can fill the pool in 4 hours less time than the smaller pipe can alone. Find the time to the nearest tenth of an hour it takes for the smaller pipe working alone to fill the pool.
A. 8.7 hr B. 4.7 hr C. 4.6 hr D. 8.6 hr
Use substitution to factor the polynomial.10y4 - 7y2 - 12
A. (10y2 - 3)(y2 + 4) B. (2y2 + 1)(5y2 - 12) C. (2y2 - 3)(5y2 + 4) D. (5y - 4)(2y + 3)